/usr/bin/java -Xmx8000000000 -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/weaver/test-hard1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:39:24,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:39:24,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:39:24,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:39:24,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:39:24,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:39:24,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:39:24,367 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 [2022-03-15 14:39:24,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:39:24,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:39:24,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:39:24,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:39:24,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:39:24,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:39:24,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:39:24,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:39:24,401 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:39:24,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:39:24,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:39:24,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:39:24,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:39:24,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:39:24,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:39:24,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:39:24,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:39:24,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:39:24,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:39:24,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:39:24,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:39:24,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:39:24,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:39:24,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:39:24,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:39:24,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:39:24,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:39:24,628 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:39:24,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-15 14:39:24,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043270ab1/a1ab6e50583b4627bf405b0d6a0c2a87/FLAGc4bdc08be [2022-03-15 14:39:25,093 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:39:25,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2022-03-15 14:39:25,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043270ab1/a1ab6e50583b4627bf405b0d6a0c2a87/FLAGc4bdc08be [2022-03-15 14:39:25,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043270ab1/a1ab6e50583b4627bf405b0d6a0c2a87 [2022-03-15 14:39:25,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:39:25,129 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:39:25,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:39:25,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:39:25,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:39:25,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e07c526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25, skipping insertion in model container [2022-03-15 14:39:25,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:39:25,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:39:25,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2022-03-15 14:39:25,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:39:25,361 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:39:25,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c[3373,3386] [2022-03-15 14:39:25,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:39:25,395 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:39:25,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25 WrapperNode [2022-03-15 14:39:25,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:39:25,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:39:25,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:39:25,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:39:25,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,448 INFO L137 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2022-03-15 14:39:25,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:39:25,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:39:25,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:39:25,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:39:25,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:39:25,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:39:25,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:39:25,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:39:25,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (1/1) ... [2022-03-15 14:39:25,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:39:25,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:39:25,515 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) [2022-03-15 14:39:25,516 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 [2022-03-15 14:39:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:39:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:39:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:39:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:39:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:39:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:39:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:39:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 14:39:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 14:39:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:39:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:39:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:39:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:39:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:39:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:39:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:39:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:39:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:39:25,557 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:39:25,660 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:39:25,662 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:39:26,019 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:39:26,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:39:26,092 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 14:39:26,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:39:26 BoogieIcfgContainer [2022-03-15 14:39:26,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:39:26,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:39:26,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:39:26,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:39:26,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:39:25" (1/3) ... [2022-03-15 14:39:26,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f60aac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:39:26, skipping insertion in model container [2022-03-15 14:39:26,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:39:25" (2/3) ... [2022-03-15 14:39:26,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f60aac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:39:26, skipping insertion in model container [2022-03-15 14:39:26,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:39:26" (3/3) ... [2022-03-15 14:39:26,107 INFO L111 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2022-03-15 14:39:26,116 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:39:26,117 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:39:26,117 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:39:26,117 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:39:26,181 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,182 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,182 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,183 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,183 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,184 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,187 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,187 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,188 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,189 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,190 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,190 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,190 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,191 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,193 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,193 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,193 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,193 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,194 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,194 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,194 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,194 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,198 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,198 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,199 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,199 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,199 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,199 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,200 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,200 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,201 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,202 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,202 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,202 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,205 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,205 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,210 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,210 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,211 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,211 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,212 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,213 WARN L322 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork2_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,214 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,214 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork3_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:39:26,227 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 14:39:26,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:39:26,288 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:39:26,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 14:39:26,303 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 135 transitions, 302 flow [2022-03-15 14:39:27,073 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:27,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-15 14:39:27,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:27,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:27,280 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2058988717, now seen corresponding path program 1 times [2022-03-15 14:39:27,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:27,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568828912] [2022-03-15 14:39:27,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:27,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:27,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:27,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568828912] [2022-03-15 14:39:27,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568828912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:27,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:27,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:39:27,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974205510] [2022-03-15 14:39:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:27,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:39:27,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:39:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:39:27,643 INFO L87 Difference]: Start difference. First operand has 13249 states, 13248 states have (on average 5.013435990338165) internal successors, (66418), 13248 states have internal predecessors, (66418), 0 states have call successors, (0), 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 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:27,922 INFO L93 Difference]: Finished difference Result 13249 states and 59470 transitions. [2022-03-15 14:39:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:39:27,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-03-15 14:39:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:28,220 INFO L225 Difference]: With dead ends: 13249 [2022-03-15 14:39:28,220 INFO L226 Difference]: Without dead ends: 13247 [2022-03-15 14:39:28,221 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 [2022-03-15 14:39:28,224 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:28,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:39:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13247 states. [2022-03-15 14:39:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13247 to 13247. [2022-03-15 14:39:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13247 states, 13246 states have (on average 4.489506266042579) internal successors, (59468), 13246 states have internal predecessors, (59468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13247 states to 13247 states and 59468 transitions. [2022-03-15 14:39:29,198 INFO L78 Accepts]: Start accepts. Automaton has 13247 states and 59468 transitions. Word has length 98 [2022-03-15 14:39:29,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:29,199 INFO L470 AbstractCegarLoop]: Abstraction has 13247 states and 59468 transitions. [2022-03-15 14:39:29,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 13247 states and 59468 transitions. [2022-03-15 14:39:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-15 14:39:29,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:29,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:29,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:39:29,274 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1413398939, now seen corresponding path program 1 times [2022-03-15 14:39:29,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:29,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805794697] [2022-03-15 14:39:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:29,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:29,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:29,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805794697] [2022-03-15 14:39:29,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805794697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:29,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:29,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:39:29,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214795896] [2022-03-15 14:39:29,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:29,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:39:29,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:29,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:39:29,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:39:29,645 INFO L87 Difference]: Start difference. First operand 13247 states and 59468 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:30,083 INFO L93 Difference]: Finished difference Result 20737 states and 92881 transitions. [2022-03-15 14:39:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:39:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-03-15 14:39:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:30,344 INFO L225 Difference]: With dead ends: 20737 [2022-03-15 14:39:30,348 INFO L226 Difference]: Without dead ends: 20290 [2022-03-15 14:39:30,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:39:30,352 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:30,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 445 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:30,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2022-03-15 14:39:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 16679. [2022-03-15 14:39:31,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16679 states, 16678 states have (on average 4.47133948914738) internal successors, (74573), 16678 states have internal predecessors, (74573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16679 states to 16679 states and 74573 transitions. [2022-03-15 14:39:31,440 INFO L78 Accepts]: Start accepts. Automaton has 16679 states and 74573 transitions. Word has length 98 [2022-03-15 14:39:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:31,442 INFO L470 AbstractCegarLoop]: Abstraction has 16679 states and 74573 transitions. [2022-03-15 14:39:31,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16679 states and 74573 transitions. [2022-03-15 14:39:31,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:31,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:31,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:31,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:39:31,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1520857668, now seen corresponding path program 1 times [2022-03-15 14:39:31,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:31,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439156790] [2022-03-15 14:39:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:31,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:31,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:31,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439156790] [2022-03-15 14:39:31,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439156790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:31,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:31,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:39:31,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395154555] [2022-03-15 14:39:31,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:31,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:39:31,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:31,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:39:31,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:39:31,698 INFO L87 Difference]: Start difference. First operand 16679 states and 74573 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:32,109 INFO L93 Difference]: Finished difference Result 26954 states and 120021 transitions. [2022-03-15 14:39:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:39:32,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:32,378 INFO L225 Difference]: With dead ends: 26954 [2022-03-15 14:39:32,378 INFO L226 Difference]: Without dead ends: 26498 [2022-03-15 14:39:32,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:39:32,379 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 153 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:32,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 419 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:32,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26498 states. [2022-03-15 14:39:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26498 to 19892. [2022-03-15 14:39:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19892 states, 19891 states have (on average 4.536322960132724) internal successors, (90232), 19891 states have internal predecessors, (90232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19892 states to 19892 states and 90232 transitions. [2022-03-15 14:39:33,464 INFO L78 Accepts]: Start accepts. Automaton has 19892 states and 90232 transitions. Word has length 101 [2022-03-15 14:39:33,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:33,465 INFO L470 AbstractCegarLoop]: Abstraction has 19892 states and 90232 transitions. [2022-03-15 14:39:33,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19892 states and 90232 transitions. [2022-03-15 14:39:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:33,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:33,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:33,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:39:33,536 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:33,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:33,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1028401524, now seen corresponding path program 1 times [2022-03-15 14:39:33,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:33,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433926183] [2022-03-15 14:39:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:33,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:33,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:33,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433926183] [2022-03-15 14:39:33,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433926183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:33,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:33,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:39:33,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540241572] [2022-03-15 14:39:33,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:33,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:39:33,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:33,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:39:33,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:39:33,658 INFO L87 Difference]: Start difference. First operand 19892 states and 90232 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:34,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:34,175 INFO L93 Difference]: Finished difference Result 36365 states and 161249 transitions. [2022-03-15 14:39:34,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:39:34,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:34,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:34,553 INFO L225 Difference]: With dead ends: 36365 [2022-03-15 14:39:34,553 INFO L226 Difference]: Without dead ends: 35807 [2022-03-15 14:39:34,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:39:34,555 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 170 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:34,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 542 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:34,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35807 states. [2022-03-15 14:39:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35807 to 25190. [2022-03-15 14:39:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25190 states, 25189 states have (on average 4.58307197586248) internal successors, (115443), 25189 states have internal predecessors, (115443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25190 states to 25190 states and 115443 transitions. [2022-03-15 14:39:35,949 INFO L78 Accepts]: Start accepts. Automaton has 25190 states and 115443 transitions. Word has length 101 [2022-03-15 14:39:35,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:35,949 INFO L470 AbstractCegarLoop]: Abstraction has 25190 states and 115443 transitions. [2022-03-15 14:39:35,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 25190 states and 115443 transitions. [2022-03-15 14:39:36,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:36,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:36,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:36,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:39:36,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:36,019 INFO L85 PathProgramCache]: Analyzing trace with hash 624817402, now seen corresponding path program 1 times [2022-03-15 14:39:36,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:36,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816216354] [2022-03-15 14:39:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:36,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:36,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:36,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816216354] [2022-03-15 14:39:36,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816216354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:36,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:36,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:39:36,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470736885] [2022-03-15 14:39:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:36,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:39:36,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:39:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:39:36,245 INFO L87 Difference]: Start difference. First operand 25190 states and 115443 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:37,138 INFO L93 Difference]: Finished difference Result 46225 states and 206773 transitions. [2022-03-15 14:39:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:39:37,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:37,509 INFO L225 Difference]: With dead ends: 46225 [2022-03-15 14:39:37,509 INFO L226 Difference]: Without dead ends: 45757 [2022-03-15 14:39:37,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:39:37,521 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 396 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:37,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 659 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:39:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45757 states. [2022-03-15 14:39:38,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45757 to 32650. [2022-03-15 14:39:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32650 states, 32649 states have (on average 4.597874360623603) internal successors, (150116), 32649 states have internal predecessors, (150116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:39,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32650 states to 32650 states and 150116 transitions. [2022-03-15 14:39:39,028 INFO L78 Accepts]: Start accepts. Automaton has 32650 states and 150116 transitions. Word has length 101 [2022-03-15 14:39:39,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:39,029 INFO L470 AbstractCegarLoop]: Abstraction has 32650 states and 150116 transitions. [2022-03-15 14:39:39,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:39,029 INFO L276 IsEmpty]: Start isEmpty. Operand 32650 states and 150116 transitions. [2022-03-15 14:39:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:39,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:39,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:39,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:39:39,129 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:39,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1755644018, now seen corresponding path program 2 times [2022-03-15 14:39:39,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:39,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188651741] [2022-03-15 14:39:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:39,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:39,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:39,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188651741] [2022-03-15 14:39:39,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188651741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:39,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:39,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:39:39,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849419805] [2022-03-15 14:39:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:39,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:39:39,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:39:39,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:39:39,248 INFO L87 Difference]: Start difference. First operand 32650 states and 150116 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:40,047 INFO L93 Difference]: Finished difference Result 55865 states and 253163 transitions. [2022-03-15 14:39:40,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:39:40,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:40,552 INFO L225 Difference]: With dead ends: 55865 [2022-03-15 14:39:40,552 INFO L226 Difference]: Without dead ends: 55394 [2022-03-15 14:39:40,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:39:40,553 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 128 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:40,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 443 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:40,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55394 states. [2022-03-15 14:39:41,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55394 to 35771. [2022-03-15 14:39:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35771 states, 35770 states have (on average 4.641962538440033) internal successors, (166043), 35770 states have internal predecessors, (166043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35771 states to 35771 states and 166043 transitions. [2022-03-15 14:39:42,230 INFO L78 Accepts]: Start accepts. Automaton has 35771 states and 166043 transitions. Word has length 101 [2022-03-15 14:39:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:42,230 INFO L470 AbstractCegarLoop]: Abstraction has 35771 states and 166043 transitions. [2022-03-15 14:39:42,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 35771 states and 166043 transitions. [2022-03-15 14:39:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:42,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:42,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:42,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:39:42,328 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:42,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:42,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1678848424, now seen corresponding path program 3 times [2022-03-15 14:39:42,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:42,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128895058] [2022-03-15 14:39:42,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:42,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:42,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:42,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128895058] [2022-03-15 14:39:42,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128895058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:42,481 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:42,481 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:39:42,481 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495486547] [2022-03-15 14:39:42,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:42,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:39:42,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:42,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:39:42,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:39:42,482 INFO L87 Difference]: Start difference. First operand 35771 states and 166043 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:43,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:43,488 INFO L93 Difference]: Finished difference Result 57044 states and 259566 transitions. [2022-03-15 14:39:43,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:39:43,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:43,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:44,027 INFO L225 Difference]: With dead ends: 57044 [2022-03-15 14:39:44,027 INFO L226 Difference]: Without dead ends: 55937 [2022-03-15 14:39:44,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:39:44,030 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 180 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:44,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 632 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55937 states. [2022-03-15 14:39:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55937 to 37277. [2022-03-15 14:39:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37277 states, 37276 states have (on average 4.638695138963408) internal successors, (172912), 37276 states have internal predecessors, (172912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37277 states to 37277 states and 172912 transitions. [2022-03-15 14:39:45,798 INFO L78 Accepts]: Start accepts. Automaton has 37277 states and 172912 transitions. Word has length 101 [2022-03-15 14:39:45,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:45,798 INFO L470 AbstractCegarLoop]: Abstraction has 37277 states and 172912 transitions. [2022-03-15 14:39:45,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 37277 states and 172912 transitions. [2022-03-15 14:39:45,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:45,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:45,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:45,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 14:39:45,899 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:45,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:45,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2009241916, now seen corresponding path program 4 times [2022-03-15 14:39:45,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:45,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686743291] [2022-03-15 14:39:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:45,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:46,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:46,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686743291] [2022-03-15 14:39:46,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686743291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:46,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:46,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:39:46,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517722566] [2022-03-15 14:39:46,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:46,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:39:46,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:46,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:39:46,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:39:46,003 INFO L87 Difference]: Start difference. First operand 37277 states and 172912 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:47,013 INFO L93 Difference]: Finished difference Result 59777 states and 272701 transitions. [2022-03-15 14:39:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:39:47,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:47,313 INFO L225 Difference]: With dead ends: 59777 [2022-03-15 14:39:47,313 INFO L226 Difference]: Without dead ends: 59306 [2022-03-15 14:39:47,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:39:47,314 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 125 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:47,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 373 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59306 states. [2022-03-15 14:39:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59306 to 38606. [2022-03-15 14:39:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38606 states, 38605 states have (on average 4.699391270560808) internal successors, (181420), 38605 states have internal predecessors, (181420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:49,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38606 states to 38606 states and 181420 transitions. [2022-03-15 14:39:49,309 INFO L78 Accepts]: Start accepts. Automaton has 38606 states and 181420 transitions. Word has length 101 [2022-03-15 14:39:49,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:49,309 INFO L470 AbstractCegarLoop]: Abstraction has 38606 states and 181420 transitions. [2022-03-15 14:39:49,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:49,310 INFO L276 IsEmpty]: Start isEmpty. Operand 38606 states and 181420 transitions. [2022-03-15 14:39:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:49,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:49,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:49,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 14:39:49,435 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:49,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:49,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1148767062, now seen corresponding path program 5 times [2022-03-15 14:39:49,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:49,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998970687] [2022-03-15 14:39:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:49,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:49,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:49,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998970687] [2022-03-15 14:39:49,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998970687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:49,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:49,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:39:49,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571969386] [2022-03-15 14:39:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:49,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:39:49,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:39:49,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:39:49,582 INFO L87 Difference]: Start difference. First operand 38606 states and 181420 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:50,689 INFO L93 Difference]: Finished difference Result 63269 states and 290905 transitions. [2022-03-15 14:39:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:39:50,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:50,996 INFO L225 Difference]: With dead ends: 63269 [2022-03-15 14:39:50,996 INFO L226 Difference]: Without dead ends: 62330 [2022-03-15 14:39:50,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:39:50,997 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 134 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:50,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 741 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:39:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62330 states. [2022-03-15 14:39:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62330 to 37798. [2022-03-15 14:39:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37798 states, 37797 states have (on average 4.671878720533376) internal successors, (176583), 37797 states have internal predecessors, (176583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37798 states to 37798 states and 176583 transitions. [2022-03-15 14:39:52,729 INFO L78 Accepts]: Start accepts. Automaton has 37798 states and 176583 transitions. Word has length 101 [2022-03-15 14:39:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:52,730 INFO L470 AbstractCegarLoop]: Abstraction has 37798 states and 176583 transitions. [2022-03-15 14:39:52,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 37798 states and 176583 transitions. [2022-03-15 14:39:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:53,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:53,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:53,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:39:53,176 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:53,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1164695738, now seen corresponding path program 6 times [2022-03-15 14:39:53,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:53,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037949970] [2022-03-15 14:39:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:53,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:53,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:53,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037949970] [2022-03-15 14:39:53,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037949970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:39:53,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:39:53,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:39:53,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75688909] [2022-03-15 14:39:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:53,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:39:53,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:39:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:39:53,374 INFO L87 Difference]: Start difference. First operand 37798 states and 176583 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:54,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:54,537 INFO L93 Difference]: Finished difference Result 64102 states and 285493 transitions. [2022-03-15 14:39:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:39:54,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:55,029 INFO L225 Difference]: With dead ends: 64102 [2022-03-15 14:39:55,029 INFO L226 Difference]: Without dead ends: 63748 [2022-03-15 14:39:55,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:39:55,030 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 392 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:55,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 718 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:39:55,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63748 states. [2022-03-15 14:39:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63748 to 38272. [2022-03-15 14:39:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38272 states, 38271 states have (on average 4.6754461602780175) internal successors, (178934), 38271 states have internal predecessors, (178934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38272 states to 38272 states and 178934 transitions. [2022-03-15 14:39:56,821 INFO L78 Accepts]: Start accepts. Automaton has 38272 states and 178934 transitions. Word has length 101 [2022-03-15 14:39:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:39:56,821 INFO L470 AbstractCegarLoop]: Abstraction has 38272 states and 178934 transitions. [2022-03-15 14:39:56,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 38272 states and 178934 transitions. [2022-03-15 14:39:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:39:56,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:39:56,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:39:56,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 14:39:56,925 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:39:56,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:39:56,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1250229748, now seen corresponding path program 1 times [2022-03-15 14:39:56,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:39:56,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559606418] [2022-03-15 14:39:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:56,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:39:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:57,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:39:57,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559606418] [2022-03-15 14:39:57,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559606418] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:39:57,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116757228] [2022-03-15 14:39:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:39:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:39:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:39:57,056 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) [2022-03-15 14:39:57,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:39:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:39:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-15 14:39:57,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:39:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:57,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:39:58,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:39:58,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116757228] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:39:58,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:39:58,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2022-03-15 14:39:58,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760194622] [2022-03-15 14:39:58,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:39:58,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:39:58,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:39:58,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:39:58,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:39:58,239 INFO L87 Difference]: Start difference. First operand 38272 states and 178934 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:39:59,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:39:59,482 INFO L93 Difference]: Finished difference Result 82609 states and 374871 transitions. [2022-03-15 14:39:59,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 14:39:59,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:39:59,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:39:59,913 INFO L225 Difference]: With dead ends: 82609 [2022-03-15 14:39:59,913 INFO L226 Difference]: Without dead ends: 79993 [2022-03-15 14:39:59,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:39:59,914 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 344 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:39:59,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 825 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:40:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79993 states. [2022-03-15 14:40:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79993 to 43146. [2022-03-15 14:40:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43146 states, 43145 states have (on average 4.650782245914938) internal successors, (200658), 43145 states have internal predecessors, (200658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43146 states to 43146 states and 200658 transitions. [2022-03-15 14:40:02,273 INFO L78 Accepts]: Start accepts. Automaton has 43146 states and 200658 transitions. Word has length 101 [2022-03-15 14:40:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:02,274 INFO L470 AbstractCegarLoop]: Abstraction has 43146 states and 200658 transitions. [2022-03-15 14:40:02,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand 43146 states and 200658 transitions. [2022-03-15 14:40:02,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:02,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:02,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:02,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 14:40:02,593 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,SelfDestructingSolverStorable10 [2022-03-15 14:40:02,594 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:02,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash -2091700616, now seen corresponding path program 2 times [2022-03-15 14:40:02,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:02,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279346083] [2022-03-15 14:40:02,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:02,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:02,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:02,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279346083] [2022-03-15 14:40:02,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279346083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:02,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:02,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:40:02,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12740611] [2022-03-15 14:40:02,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:02,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:40:02,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:02,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:40:02,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:40:02,807 INFO L87 Difference]: Start difference. First operand 43146 states and 200658 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:04,049 INFO L93 Difference]: Finished difference Result 79466 states and 354186 transitions. [2022-03-15 14:40:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:40:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:04,721 INFO L225 Difference]: With dead ends: 79466 [2022-03-15 14:40:04,721 INFO L226 Difference]: Without dead ends: 78026 [2022-03-15 14:40:04,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:40:04,722 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 478 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:04,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [478 Valid, 704 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:40:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78026 states. [2022-03-15 14:40:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78026 to 43478. [2022-03-15 14:40:06,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43478 states, 43477 states have (on average 4.664190261517584) internal successors, (202785), 43477 states have internal predecessors, (202785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43478 states to 43478 states and 202785 transitions. [2022-03-15 14:40:06,752 INFO L78 Accepts]: Start accepts. Automaton has 43478 states and 202785 transitions. Word has length 101 [2022-03-15 14:40:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:06,752 INFO L470 AbstractCegarLoop]: Abstraction has 43478 states and 202785 transitions. [2022-03-15 14:40:06,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:06,753 INFO L276 IsEmpty]: Start isEmpty. Operand 43478 states and 202785 transitions. [2022-03-15 14:40:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:06,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:06,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:06,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 14:40:06,877 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:06,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:06,877 INFO L85 PathProgramCache]: Analyzing trace with hash 825070516, now seen corresponding path program 2 times [2022-03-15 14:40:06,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:06,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911602328] [2022-03-15 14:40:06,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:06,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:06,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:06,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:06,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911602328] [2022-03-15 14:40:06,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911602328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:06,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:06,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:40:06,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672487460] [2022-03-15 14:40:06,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:06,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:40:06,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:40:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:40:06,997 INFO L87 Difference]: Start difference. First operand 43478 states and 202785 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:08,505 INFO L93 Difference]: Finished difference Result 84531 states and 381017 transitions. [2022-03-15 14:40:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:40:08,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:08,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:09,541 INFO L225 Difference]: With dead ends: 84531 [2022-03-15 14:40:09,541 INFO L226 Difference]: Without dead ends: 83742 [2022-03-15 14:40:09,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:40:09,542 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 153 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:09,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 473 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:40:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83742 states. [2022-03-15 14:40:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83742 to 50216. [2022-03-15 14:40:11,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50216 states, 50215 states have (on average 4.677486806731056) internal successors, (234880), 50215 states have internal predecessors, (234880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:12,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50216 states to 50216 states and 234880 transitions. [2022-03-15 14:40:12,156 INFO L78 Accepts]: Start accepts. Automaton has 50216 states and 234880 transitions. Word has length 101 [2022-03-15 14:40:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:12,156 INFO L470 AbstractCegarLoop]: Abstraction has 50216 states and 234880 transitions. [2022-03-15 14:40:12,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 50216 states and 234880 transitions. [2022-03-15 14:40:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:12,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:12,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:12,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 14:40:12,354 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:12,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1490924426, now seen corresponding path program 2 times [2022-03-15 14:40:12,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:12,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446716175] [2022-03-15 14:40:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:12,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:12,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:12,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446716175] [2022-03-15 14:40:12,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446716175] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:40:12,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619531718] [2022-03-15 14:40:12,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:40:12,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:40:12,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:40:12,493 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) [2022-03-15 14:40:12,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:40:12,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:40:12,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:40:12,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 6 conjunts are in the unsatisfiable core [2022-03-15 14:40:12,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:40:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:13,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:40:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:13,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619531718] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 14:40:13,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 14:40:13,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2022-03-15 14:40:13,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136055442] [2022-03-15 14:40:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:13,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:40:13,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:40:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:40:13,279 INFO L87 Difference]: Start difference. First operand 50216 states and 234880 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:14,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:14,262 INFO L93 Difference]: Finished difference Result 78516 states and 360242 transitions. [2022-03-15 14:40:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:40:14,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:14,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:14,981 INFO L225 Difference]: With dead ends: 78516 [2022-03-15 14:40:14,981 INFO L226 Difference]: Without dead ends: 78516 [2022-03-15 14:40:14,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:40:14,982 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 168 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:14,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 608 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:40:15,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78516 states. [2022-03-15 14:40:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78516 to 52826. [2022-03-15 14:40:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52826 states, 52825 states have (on average 4.6809843823946995) internal successors, (247273), 52825 states have internal predecessors, (247273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52826 states to 52826 states and 247273 transitions. [2022-03-15 14:40:17,108 INFO L78 Accepts]: Start accepts. Automaton has 52826 states and 247273 transitions. Word has length 101 [2022-03-15 14:40:17,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:17,109 INFO L470 AbstractCegarLoop]: Abstraction has 52826 states and 247273 transitions. [2022-03-15 14:40:17,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:17,109 INFO L276 IsEmpty]: Start isEmpty. Operand 52826 states and 247273 transitions. [2022-03-15 14:40:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:17,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:17,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:17,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 14:40:17,878 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,SelfDestructingSolverStorable13 [2022-03-15 14:40:17,878 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:17,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash -538059778, now seen corresponding path program 3 times [2022-03-15 14:40:17,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:17,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670070263] [2022-03-15 14:40:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:17,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:18,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:18,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:18,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670070263] [2022-03-15 14:40:18,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670070263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:18,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:18,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:40:18,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615631331] [2022-03-15 14:40:18,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:18,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:40:18,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:40:18,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:40:18,020 INFO L87 Difference]: Start difference. First operand 52826 states and 247273 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:19,133 INFO L93 Difference]: Finished difference Result 82873 states and 377125 transitions. [2022-03-15 14:40:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:40:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:19,565 INFO L225 Difference]: With dead ends: 82873 [2022-03-15 14:40:19,565 INFO L226 Difference]: Without dead ends: 82873 [2022-03-15 14:40:19,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:40:19,566 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 194 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:19,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 757 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:40:19,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82873 states. [2022-03-15 14:40:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82873 to 52916. [2022-03-15 14:40:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52916 states, 52915 states have (on average 4.688916186336577) internal successors, (248114), 52915 states have internal predecessors, (248114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52916 states to 52916 states and 248114 transitions. [2022-03-15 14:40:21,984 INFO L78 Accepts]: Start accepts. Automaton has 52916 states and 248114 transitions. Word has length 101 [2022-03-15 14:40:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:21,985 INFO L470 AbstractCegarLoop]: Abstraction has 52916 states and 248114 transitions. [2022-03-15 14:40:21,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:21,985 INFO L276 IsEmpty]: Start isEmpty. Operand 52916 states and 248114 transitions. [2022-03-15 14:40:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:22,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:22,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:22,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 14:40:22,126 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:22,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:22,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1066615254, now seen corresponding path program 3 times [2022-03-15 14:40:22,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:22,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66610537] [2022-03-15 14:40:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:22,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:22,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66610537] [2022-03-15 14:40:22,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66610537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:22,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:22,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:40:22,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22913434] [2022-03-15 14:40:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:22,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:40:22,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:22,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:40:22,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:40:22,325 INFO L87 Difference]: Start difference. First operand 52916 states and 248114 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:23,860 INFO L93 Difference]: Finished difference Result 98343 states and 444056 transitions. [2022-03-15 14:40:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:40:23,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:24,420 INFO L225 Difference]: With dead ends: 98343 [2022-03-15 14:40:24,420 INFO L226 Difference]: Without dead ends: 97287 [2022-03-15 14:40:24,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:40:24,421 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 249 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:24,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 682 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:40:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97287 states. [2022-03-15 14:40:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97287 to 57024. [2022-03-15 14:40:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57024 states, 57023 states have (on average 4.686950879469688) internal successors, (267264), 57023 states have internal predecessors, (267264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57024 states to 57024 states and 267264 transitions. [2022-03-15 14:40:27,183 INFO L78 Accepts]: Start accepts. Automaton has 57024 states and 267264 transitions. Word has length 101 [2022-03-15 14:40:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:27,183 INFO L470 AbstractCegarLoop]: Abstraction has 57024 states and 267264 transitions. [2022-03-15 14:40:27,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 57024 states and 267264 transitions. [2022-03-15 14:40:27,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:27,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:27,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:27,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 14:40:27,782 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:27,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1001247478, now seen corresponding path program 3 times [2022-03-15 14:40:27,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:27,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527872098] [2022-03-15 14:40:27,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:27,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:27,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:27,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:27,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527872098] [2022-03-15 14:40:27,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527872098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:27,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:27,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:40:27,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473704819] [2022-03-15 14:40:27,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:27,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:40:27,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:27,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:40:27,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:40:27,948 INFO L87 Difference]: Start difference. First operand 57024 states and 267264 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:29,140 INFO L93 Difference]: Finished difference Result 85680 states and 392261 transitions. [2022-03-15 14:40:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:40:29,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:29,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:29,577 INFO L225 Difference]: With dead ends: 85680 [2022-03-15 14:40:29,577 INFO L226 Difference]: Without dead ends: 84408 [2022-03-15 14:40:29,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:40:29,578 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 381 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:29,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 570 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:40:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84408 states. [2022-03-15 14:40:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84408 to 58212. [2022-03-15 14:40:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58212 states, 58211 states have (on average 4.6931164212949446) internal successors, (273191), 58211 states have internal predecessors, (273191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58212 states to 58212 states and 273191 transitions. [2022-03-15 14:40:32,174 INFO L78 Accepts]: Start accepts. Automaton has 58212 states and 273191 transitions. Word has length 101 [2022-03-15 14:40:32,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:32,174 INFO L470 AbstractCegarLoop]: Abstraction has 58212 states and 273191 transitions. [2022-03-15 14:40:32,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:32,175 INFO L276 IsEmpty]: Start isEmpty. Operand 58212 states and 273191 transitions. [2022-03-15 14:40:32,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:32,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:32,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:32,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 14:40:32,756 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 927118624, now seen corresponding path program 4 times [2022-03-15 14:40:32,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:32,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005058525] [2022-03-15 14:40:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:33,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:33,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005058525] [2022-03-15 14:40:33,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005058525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:33,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:33,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:40:33,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412743765] [2022-03-15 14:40:33,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:33,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:40:33,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:33,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:40:33,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:40:33,008 INFO L87 Difference]: Start difference. First operand 58212 states and 273191 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:35,514 INFO L93 Difference]: Finished difference Result 163365 states and 732340 transitions. [2022-03-15 14:40:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:40:35,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:35,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:36,902 INFO L225 Difference]: With dead ends: 163365 [2022-03-15 14:40:36,902 INFO L226 Difference]: Without dead ends: 161862 [2022-03-15 14:40:36,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-15 14:40:36,903 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 799 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:36,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [799 Valid, 1198 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:40:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161862 states. [2022-03-15 14:40:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161862 to 58791. [2022-03-15 14:40:40,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58791 states, 58790 states have (on average 4.702976696717129) internal successors, (276488), 58790 states have internal predecessors, (276488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58791 states to 58791 states and 276488 transitions. [2022-03-15 14:40:40,808 INFO L78 Accepts]: Start accepts. Automaton has 58791 states and 276488 transitions. Word has length 101 [2022-03-15 14:40:40,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:40,808 INFO L470 AbstractCegarLoop]: Abstraction has 58791 states and 276488 transitions. [2022-03-15 14:40:40,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 58791 states and 276488 transitions. [2022-03-15 14:40:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:40,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:40,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:40,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 14:40:40,980 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:40,981 INFO L85 PathProgramCache]: Analyzing trace with hash -159366288, now seen corresponding path program 7 times [2022-03-15 14:40:40,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:40,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478733589] [2022-03-15 14:40:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:40,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:41,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:41,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478733589] [2022-03-15 14:40:41,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478733589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:41,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:41,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:40:41,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411327715] [2022-03-15 14:40:41,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:41,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:40:41,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:41,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:40:41,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:40:41,101 INFO L87 Difference]: Start difference. First operand 58791 states and 276488 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:43,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:43,077 INFO L93 Difference]: Finished difference Result 124729 states and 567200 transitions. [2022-03-15 14:40:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:40:43,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:43,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:44,025 INFO L225 Difference]: With dead ends: 124729 [2022-03-15 14:40:44,026 INFO L226 Difference]: Without dead ends: 123229 [2022-03-15 14:40:44,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:40:44,026 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 584 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:44,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [584 Valid, 762 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:40:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123229 states. [2022-03-15 14:40:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123229 to 65971. [2022-03-15 14:40:47,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65971 states, 65970 states have (on average 4.7237229043504625) internal successors, (311624), 65970 states have internal predecessors, (311624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65971 states to 65971 states and 311624 transitions. [2022-03-15 14:40:47,831 INFO L78 Accepts]: Start accepts. Automaton has 65971 states and 311624 transitions. Word has length 101 [2022-03-15 14:40:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:47,832 INFO L470 AbstractCegarLoop]: Abstraction has 65971 states and 311624 transitions. [2022-03-15 14:40:47,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 65971 states and 311624 transitions. [2022-03-15 14:40:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:48,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:48,031 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:48,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 14:40:48,031 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash -64670636, now seen corresponding path program 8 times [2022-03-15 14:40:48,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:48,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775065858] [2022-03-15 14:40:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:48,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:48,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:48,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775065858] [2022-03-15 14:40:48,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775065858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:48,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:48,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:40:48,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35724723] [2022-03-15 14:40:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:48,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:40:48,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:48,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:40:48,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:40:48,222 INFO L87 Difference]: Start difference. First operand 65971 states and 311624 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:50,649 INFO L93 Difference]: Finished difference Result 157985 states and 720792 transitions. [2022-03-15 14:40:50,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 14:40:50,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:50,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:40:51,657 INFO L225 Difference]: With dead ends: 157985 [2022-03-15 14:40:51,657 INFO L226 Difference]: Without dead ends: 157907 [2022-03-15 14:40:51,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:40:51,658 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 755 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:40:51,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 762 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:40:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157907 states. [2022-03-15 14:40:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157907 to 69297. [2022-03-15 14:40:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69297 states, 69296 states have (on average 4.7748787808820135) internal successors, (330880), 69296 states have internal predecessors, (330880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69297 states to 69297 states and 330880 transitions. [2022-03-15 14:40:56,363 INFO L78 Accepts]: Start accepts. Automaton has 69297 states and 330880 transitions. Word has length 101 [2022-03-15 14:40:56,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:40:56,363 INFO L470 AbstractCegarLoop]: Abstraction has 69297 states and 330880 transitions. [2022-03-15 14:40:56,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:56,364 INFO L276 IsEmpty]: Start isEmpty. Operand 69297 states and 330880 transitions. [2022-03-15 14:40:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:40:56,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:40:56,584 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:40:56,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 14:40:56,584 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:40:56,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:40:56,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1014744858, now seen corresponding path program 9 times [2022-03-15 14:40:56,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:40:56,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143929350] [2022-03-15 14:40:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:40:56,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:40:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:40:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:40:56,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:40:56,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143929350] [2022-03-15 14:40:56,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143929350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:40:56,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:40:56,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:40:56,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110020764] [2022-03-15 14:40:56,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:40:56,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:40:56,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:40:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:40:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:40:56,742 INFO L87 Difference]: Start difference. First operand 69297 states and 330880 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:40:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:40:59,391 INFO L93 Difference]: Finished difference Result 165656 states and 758990 transitions. [2022-03-15 14:40:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 14:40:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:40:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:00,776 INFO L225 Difference]: With dead ends: 165656 [2022-03-15 14:41:00,776 INFO L226 Difference]: Without dead ends: 164234 [2022-03-15 14:41:00,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:41:00,776 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 522 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:00,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 837 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:41:01,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164234 states. [2022-03-15 14:41:03,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164234 to 69867. [2022-03-15 14:41:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69867 states, 69866 states have (on average 4.789110583116251) internal successors, (334596), 69866 states have internal predecessors, (334596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69867 states to 69867 states and 334596 transitions. [2022-03-15 14:41:04,914 INFO L78 Accepts]: Start accepts. Automaton has 69867 states and 334596 transitions. Word has length 101 [2022-03-15 14:41:04,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:04,914 INFO L470 AbstractCegarLoop]: Abstraction has 69867 states and 334596 transitions. [2022-03-15 14:41:04,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 69867 states and 334596 transitions. [2022-03-15 14:41:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:05,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:05,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:05,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 14:41:05,119 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:05,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1523804302, now seen corresponding path program 10 times [2022-03-15 14:41:05,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:05,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353352988] [2022-03-15 14:41:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:05,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:05,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:05,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353352988] [2022-03-15 14:41:05,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353352988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:05,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:05,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:41:05,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693775194] [2022-03-15 14:41:05,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:05,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:41:05,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:41:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:41:05,290 INFO L87 Difference]: Start difference. First operand 69867 states and 334596 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:07,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:07,914 INFO L93 Difference]: Finished difference Result 160014 states and 736969 transitions. [2022-03-15 14:41:07,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 14:41:07,915 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:07,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:09,174 INFO L225 Difference]: With dead ends: 160014 [2022-03-15 14:41:09,175 INFO L226 Difference]: Without dead ends: 158142 [2022-03-15 14:41:09,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:41:09,175 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 517 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:09,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [517 Valid, 1003 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-15 14:41:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158142 states. [2022-03-15 14:41:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158142 to 69175. [2022-03-15 14:41:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69175 states, 69174 states have (on average 4.7830543267701735) internal successors, (330863), 69174 states have internal predecessors, (330863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69175 states to 69175 states and 330863 transitions. [2022-03-15 14:41:13,950 INFO L78 Accepts]: Start accepts. Automaton has 69175 states and 330863 transitions. Word has length 101 [2022-03-15 14:41:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:13,950 INFO L470 AbstractCegarLoop]: Abstraction has 69175 states and 330863 transitions. [2022-03-15 14:41:13,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:13,950 INFO L276 IsEmpty]: Start isEmpty. Operand 69175 states and 330863 transitions. [2022-03-15 14:41:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:14,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:14,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:14,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 14:41:14,163 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1922990064, now seen corresponding path program 5 times [2022-03-15 14:41:14,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:14,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982711354] [2022-03-15 14:41:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:14,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:14,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982711354] [2022-03-15 14:41:14,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982711354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:14,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:14,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:41:14,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443147531] [2022-03-15 14:41:14,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:14,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:41:14,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:41:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:41:14,719 INFO L87 Difference]: Start difference. First operand 69175 states and 330863 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:16,643 INFO L93 Difference]: Finished difference Result 128006 states and 590407 transitions. [2022-03-15 14:41:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:41:16,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:16,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:18,252 INFO L225 Difference]: With dead ends: 128006 [2022-03-15 14:41:18,252 INFO L226 Difference]: Without dead ends: 125060 [2022-03-15 14:41:18,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:41:18,253 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 531 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:18,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [531 Valid, 844 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:41:18,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125060 states. [2022-03-15 14:41:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125060 to 69172. [2022-03-15 14:41:21,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69172 states, 69171 states have (on average 4.76751817958393) internal successors, (329774), 69171 states have internal predecessors, (329774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69172 states to 69172 states and 329774 transitions. [2022-03-15 14:41:21,935 INFO L78 Accepts]: Start accepts. Automaton has 69172 states and 329774 transitions. Word has length 101 [2022-03-15 14:41:21,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:21,935 INFO L470 AbstractCegarLoop]: Abstraction has 69172 states and 329774 transitions. [2022-03-15 14:41:21,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:21,936 INFO L276 IsEmpty]: Start isEmpty. Operand 69172 states and 329774 transitions. [2022-03-15 14:41:22,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:22,160 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:22,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:22,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 14:41:22,161 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:22,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1219880012, now seen corresponding path program 4 times [2022-03-15 14:41:22,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:22,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925275559] [2022-03-15 14:41:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:22,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:22,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925275559] [2022-03-15 14:41:22,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925275559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:22,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:22,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:41:22,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088972642] [2022-03-15 14:41:22,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:22,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:41:22,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:22,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:41:22,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:41:22,337 INFO L87 Difference]: Start difference. First operand 69172 states and 329774 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:24,003 INFO L93 Difference]: Finished difference Result 110720 states and 505797 transitions. [2022-03-15 14:41:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:41:24,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:24,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:24,670 INFO L225 Difference]: With dead ends: 110720 [2022-03-15 14:41:24,670 INFO L226 Difference]: Without dead ends: 109280 [2022-03-15 14:41:24,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:41:24,671 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 298 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:24,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 584 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:41:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109280 states. [2022-03-15 14:41:27,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109280 to 68267. [2022-03-15 14:41:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68267 states, 68266 states have (on average 4.763088506723698) internal successors, (325157), 68266 states have internal predecessors, (325157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:28,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68267 states to 68267 states and 325157 transitions. [2022-03-15 14:41:28,092 INFO L78 Accepts]: Start accepts. Automaton has 68267 states and 325157 transitions. Word has length 101 [2022-03-15 14:41:28,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:28,093 INFO L470 AbstractCegarLoop]: Abstraction has 68267 states and 325157 transitions. [2022-03-15 14:41:28,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 68267 states and 325157 transitions. [2022-03-15 14:41:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:28,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:28,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:28,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 14:41:28,308 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:28,308 INFO L85 PathProgramCache]: Analyzing trace with hash -194794650, now seen corresponding path program 6 times [2022-03-15 14:41:28,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:28,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062261299] [2022-03-15 14:41:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:28,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:28,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062261299] [2022-03-15 14:41:28,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062261299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:28,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:28,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:41:28,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144229968] [2022-03-15 14:41:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:28,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:41:28,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:28,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:41:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:41:28,496 INFO L87 Difference]: Start difference. First operand 68267 states and 325157 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:30,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:30,115 INFO L93 Difference]: Finished difference Result 114839 states and 525788 transitions. [2022-03-15 14:41:30,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:41:30,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:30,729 INFO L225 Difference]: With dead ends: 114839 [2022-03-15 14:41:30,729 INFO L226 Difference]: Without dead ends: 113783 [2022-03-15 14:41:30,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:41:30,730 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 447 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:30,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 558 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:41:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113783 states. [2022-03-15 14:41:33,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113783 to 71003. [2022-03-15 14:41:33,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71003 states, 71002 states have (on average 4.769372693726937) internal successors, (338635), 71002 states have internal predecessors, (338635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71003 states to 71003 states and 338635 transitions. [2022-03-15 14:41:34,199 INFO L78 Accepts]: Start accepts. Automaton has 71003 states and 338635 transitions. Word has length 101 [2022-03-15 14:41:34,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:34,199 INFO L470 AbstractCegarLoop]: Abstraction has 71003 states and 338635 transitions. [2022-03-15 14:41:34,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 71003 states and 338635 transitions. [2022-03-15 14:41:34,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:34,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:34,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:34,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 14:41:34,862 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:34,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:34,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1873068082, now seen corresponding path program 5 times [2022-03-15 14:41:34,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:34,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833291651] [2022-03-15 14:41:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:35,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:35,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833291651] [2022-03-15 14:41:35,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833291651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:35,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:35,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:41:35,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724807141] [2022-03-15 14:41:35,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:35,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:41:35,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:35,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:41:35,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:41:35,017 INFO L87 Difference]: Start difference. First operand 71003 states and 338635 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:36,423 INFO L93 Difference]: Finished difference Result 111275 states and 515055 transitions. [2022-03-15 14:41:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:41:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:37,390 INFO L225 Difference]: With dead ends: 111275 [2022-03-15 14:41:37,390 INFO L226 Difference]: Without dead ends: 110189 [2022-03-15 14:41:37,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:41:37,391 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 373 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:37,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 703 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:41:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110189 states. [2022-03-15 14:41:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110189 to 70441. [2022-03-15 14:41:40,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70441 states, 70440 states have (on average 4.760022714366837) internal successors, (335296), 70440 states have internal predecessors, (335296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70441 states to 70441 states and 335296 transitions. [2022-03-15 14:41:40,828 INFO L78 Accepts]: Start accepts. Automaton has 70441 states and 335296 transitions. Word has length 101 [2022-03-15 14:41:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:40,828 INFO L470 AbstractCegarLoop]: Abstraction has 70441 states and 335296 transitions. [2022-03-15 14:41:40,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 70441 states and 335296 transitions. [2022-03-15 14:41:41,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:41,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:41,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:41,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 14:41:41,056 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1798939228, now seen corresponding path program 7 times [2022-03-15 14:41:41,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:41,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410565] [2022-03-15 14:41:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:41,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:41,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:41,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410565] [2022-03-15 14:41:41,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:41,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:41,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:41:41,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587209157] [2022-03-15 14:41:41,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:41,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:41:41,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:41,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:41:41,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:41:41,251 INFO L87 Difference]: Start difference. First operand 70441 states and 335296 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:43,395 INFO L93 Difference]: Finished difference Result 154148 states and 706415 transitions. [2022-03-15 14:41:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 14:41:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:45,248 INFO L225 Difference]: With dead ends: 154148 [2022-03-15 14:41:45,249 INFO L226 Difference]: Without dead ends: 152753 [2022-03-15 14:41:45,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:41:45,252 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 620 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:45,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 795 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:41:45,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152753 states. [2022-03-15 14:41:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152753 to 68231. [2022-03-15 14:41:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68231 states, 68230 states have (on average 4.757262201377693) internal successors, (324588), 68230 states have internal predecessors, (324588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68231 states to 68231 states and 324588 transitions. [2022-03-15 14:41:49,903 INFO L78 Accepts]: Start accepts. Automaton has 68231 states and 324588 transitions. Word has length 101 [2022-03-15 14:41:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 68231 states and 324588 transitions. [2022-03-15 14:41:49,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:49,903 INFO L276 IsEmpty]: Start isEmpty. Operand 68231 states and 324588 transitions. [2022-03-15 14:41:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:50,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:50,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:50,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 14:41:50,107 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:50,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:50,108 INFO L85 PathProgramCache]: Analyzing trace with hash 521269194, now seen corresponding path program 8 times [2022-03-15 14:41:50,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:50,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018285010] [2022-03-15 14:41:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:50,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:50,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:50,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018285010] [2022-03-15 14:41:50,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018285010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:50,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:50,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:41:50,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072556008] [2022-03-15 14:41:50,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:50,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:41:50,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:41:50,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:41:50,245 INFO L87 Difference]: Start difference. First operand 68231 states and 324588 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:51,796 INFO L93 Difference]: Finished difference Result 94580 states and 432385 transitions. [2022-03-15 14:41:51,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:41:51,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:52,326 INFO L225 Difference]: With dead ends: 94580 [2022-03-15 14:41:52,327 INFO L226 Difference]: Without dead ends: 93218 [2022-03-15 14:41:52,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:41:52,327 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 526 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:52,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 542 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:41:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93218 states. [2022-03-15 14:41:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93218 to 69899. [2022-03-15 14:41:54,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69899 states, 69898 states have (on average 4.749263212109073) internal successors, (331964), 69898 states have internal predecessors, (331964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69899 states to 69899 states and 331964 transitions. [2022-03-15 14:41:55,670 INFO L78 Accepts]: Start accepts. Automaton has 69899 states and 331964 transitions. Word has length 101 [2022-03-15 14:41:55,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:41:55,670 INFO L470 AbstractCegarLoop]: Abstraction has 69899 states and 331964 transitions. [2022-03-15 14:41:55,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 69899 states and 331964 transitions. [2022-03-15 14:41:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:41:55,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:41:55,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:41:55,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 14:41:55,907 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:41:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:41:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 644625612, now seen corresponding path program 4 times [2022-03-15 14:41:55,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:41:55,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616083438] [2022-03-15 14:41:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:41:55,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:41:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:41:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:41:56,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:41:56,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616083438] [2022-03-15 14:41:56,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616083438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:41:56,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:41:56,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:41:56,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7210673] [2022-03-15 14:41:56,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:41:56,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:41:56,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:41:56,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:41:56,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:41:56,001 INFO L87 Difference]: Start difference. First operand 69899 states and 331964 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:41:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:41:57,565 INFO L93 Difference]: Finished difference Result 111761 states and 510503 transitions. [2022-03-15 14:41:57,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:41:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:41:57,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:41:58,239 INFO L225 Difference]: With dead ends: 111761 [2022-03-15 14:41:58,239 INFO L226 Difference]: Without dead ends: 109982 [2022-03-15 14:41:58,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:41:58,240 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 167 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:41:58,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 424 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:41:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109982 states. [2022-03-15 14:42:00,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109982 to 74248. [2022-03-15 14:42:01,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74248 states, 74247 states have (on average 4.7550608105378) internal successors, (353049), 74247 states have internal predecessors, (353049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74248 states to 74248 states and 353049 transitions. [2022-03-15 14:42:01,747 INFO L78 Accepts]: Start accepts. Automaton has 74248 states and 353049 transitions. Word has length 101 [2022-03-15 14:42:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:01,748 INFO L470 AbstractCegarLoop]: Abstraction has 74248 states and 353049 transitions. [2022-03-15 14:42:01,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:01,748 INFO L276 IsEmpty]: Start isEmpty. Operand 74248 states and 353049 transitions. [2022-03-15 14:42:01,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:01,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:01,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:01,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 14:42:01,970 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:01,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:01,971 INFO L85 PathProgramCache]: Analyzing trace with hash -718504682, now seen corresponding path program 5 times [2022-03-15 14:42:01,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:01,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777739398] [2022-03-15 14:42:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:01,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:02,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:02,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777739398] [2022-03-15 14:42:02,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777739398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:02,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:02,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:42:02,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647047994] [2022-03-15 14:42:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:02,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:42:02,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:42:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:42:02,077 INFO L87 Difference]: Start difference. First operand 74248 states and 353049 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:03,647 INFO L93 Difference]: Finished difference Result 119075 states and 549553 transitions. [2022-03-15 14:42:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:42:03,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:04,663 INFO L225 Difference]: With dead ends: 119075 [2022-03-15 14:42:04,663 INFO L226 Difference]: Without dead ends: 118283 [2022-03-15 14:42:04,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:42:04,664 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 196 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:04,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 849 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 14:42:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118283 states. [2022-03-15 14:42:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118283 to 80700. [2022-03-15 14:42:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80700 states, 80699 states have (on average 4.783714792004858) internal successors, (386041), 80699 states have internal predecessors, (386041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80700 states to 80700 states and 386041 transitions. [2022-03-15 14:42:08,414 INFO L78 Accepts]: Start accepts. Automaton has 80700 states and 386041 transitions. Word has length 101 [2022-03-15 14:42:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:08,414 INFO L470 AbstractCegarLoop]: Abstraction has 80700 states and 386041 transitions. [2022-03-15 14:42:08,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 80700 states and 386041 transitions. [2022-03-15 14:42:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:08,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:08,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:08,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 14:42:08,670 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:08,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 899081794, now seen corresponding path program 6 times [2022-03-15 14:42:08,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:08,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760737321] [2022-03-15 14:42:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:08,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:08,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760737321] [2022-03-15 14:42:08,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760737321] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:42:08,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980929569] [2022-03-15 14:42:08,909 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:42:08,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:42:08,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:42:08,915 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) [2022-03-15 14:42:08,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:42:09,028 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-03-15 14:42:09,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:42:09,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 14:42:09,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:42:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:09,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 14:42:09,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980929569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:09,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 14:42:09,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-03-15 14:42:09,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488972503] [2022-03-15 14:42:09,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:09,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:42:09,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:42:09,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:42:09,786 INFO L87 Difference]: Start difference. First operand 80700 states and 386041 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:11,334 INFO L93 Difference]: Finished difference Result 111284 states and 511716 transitions. [2022-03-15 14:42:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:42:11,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:12,666 INFO L225 Difference]: With dead ends: 111284 [2022-03-15 14:42:12,667 INFO L226 Difference]: Without dead ends: 110618 [2022-03-15 14:42:12,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:42:12,667 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 469 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:12,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 913 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:42:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110618 states. [2022-03-15 14:42:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110618 to 84068. [2022-03-15 14:42:16,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84068 states, 84067 states have (on average 4.780282393804941) internal successors, (401864), 84067 states have internal predecessors, (401864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:16,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84068 states to 84068 states and 401864 transitions. [2022-03-15 14:42:16,941 INFO L78 Accepts]: Start accepts. Automaton has 84068 states and 401864 transitions. Word has length 101 [2022-03-15 14:42:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:16,941 INFO L470 AbstractCegarLoop]: Abstraction has 84068 states and 401864 transitions. [2022-03-15 14:42:16,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:16,942 INFO L276 IsEmpty]: Start isEmpty. Operand 84068 states and 401864 transitions. [2022-03-15 14:42:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:17,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:17,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:17,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 14:42:17,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:42:17,827 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1460901570, now seen corresponding path program 7 times [2022-03-15 14:42:17,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:17,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441040799] [2022-03-15 14:42:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:17,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:17,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441040799] [2022-03-15 14:42:17,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441040799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:17,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:17,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:42:17,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434806553] [2022-03-15 14:42:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:17,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:42:17,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:42:17,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:42:17,962 INFO L87 Difference]: Start difference. First operand 84068 states and 401864 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:19,304 INFO L93 Difference]: Finished difference Result 108916 states and 503887 transitions. [2022-03-15 14:42:19,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:42:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:20,313 INFO L225 Difference]: With dead ends: 108916 [2022-03-15 14:42:20,314 INFO L226 Difference]: Without dead ends: 108748 [2022-03-15 14:42:20,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:42:20,314 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 337 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:20,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 695 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:42:20,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108748 states. [2022-03-15 14:42:23,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108748 to 83519. [2022-03-15 14:42:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83519 states, 83518 states have (on average 4.787973849948514) internal successors, (399882), 83518 states have internal predecessors, (399882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83519 states to 83519 states and 399882 transitions. [2022-03-15 14:42:24,126 INFO L78 Accepts]: Start accepts. Automaton has 83519 states and 399882 transitions. Word has length 101 [2022-03-15 14:42:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:24,126 INFO L470 AbstractCegarLoop]: Abstraction has 83519 states and 399882 transitions. [2022-03-15 14:42:24,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 83519 states and 399882 transitions. [2022-03-15 14:42:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:24,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:24,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:24,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 14:42:24,389 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1913085368, now seen corresponding path program 6 times [2022-03-15 14:42:24,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:24,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139798071] [2022-03-15 14:42:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:24,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:24,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:24,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139798071] [2022-03-15 14:42:24,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139798071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:24,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:24,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:42:24,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466405365] [2022-03-15 14:42:24,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:24,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:42:24,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:24,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:42:24,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:42:24,503 INFO L87 Difference]: Start difference. First operand 83519 states and 399882 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:26,158 INFO L93 Difference]: Finished difference Result 113400 states and 533466 transitions. [2022-03-15 14:42:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 14:42:26,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:27,140 INFO L225 Difference]: With dead ends: 113400 [2022-03-15 14:42:27,140 INFO L226 Difference]: Without dead ends: 110598 [2022-03-15 14:42:27,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:42:27,141 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 377 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:27,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 592 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 14:42:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110598 states. [2022-03-15 14:42:29,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110598 to 82693. [2022-03-15 14:42:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82693 states, 82692 states have (on average 4.792241087408697) internal successors, (396280), 82692 states have internal predecessors, (396280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82693 states to 82693 states and 396280 transitions. [2022-03-15 14:42:30,835 INFO L78 Accepts]: Start accepts. Automaton has 82693 states and 396280 transitions. Word has length 101 [2022-03-15 14:42:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:30,836 INFO L470 AbstractCegarLoop]: Abstraction has 82693 states and 396280 transitions. [2022-03-15 14:42:30,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 82693 states and 396280 transitions. [2022-03-15 14:42:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:31,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:31,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:31,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 14:42:31,111 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:31,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1302759054, now seen corresponding path program 8 times [2022-03-15 14:42:31,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:31,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75618157] [2022-03-15 14:42:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:31,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:31,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:31,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:31,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75618157] [2022-03-15 14:42:31,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75618157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:31,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:31,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:42:31,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588457476] [2022-03-15 14:42:31,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:31,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:42:31,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:31,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:42:31,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:42:31,277 INFO L87 Difference]: Start difference. First operand 82693 states and 396280 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:33,063 INFO L93 Difference]: Finished difference Result 120172 states and 558193 transitions. [2022-03-15 14:42:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:42:33,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:34,155 INFO L225 Difference]: With dead ends: 120172 [2022-03-15 14:42:34,155 INFO L226 Difference]: Without dead ends: 120082 [2022-03-15 14:42:34,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:42:34,156 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 463 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:34,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 553 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:42:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120082 states. [2022-03-15 14:42:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120082 to 83072. [2022-03-15 14:42:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83072 states, 83071 states have (on average 4.798293026447256) internal successors, (398599), 83071 states have internal predecessors, (398599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83072 states to 83072 states and 398599 transitions. [2022-03-15 14:42:38,117 INFO L78 Accepts]: Start accepts. Automaton has 83072 states and 398599 transitions. Word has length 101 [2022-03-15 14:42:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:38,117 INFO L470 AbstractCegarLoop]: Abstraction has 83072 states and 398599 transitions. [2022-03-15 14:42:38,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 83072 states and 398599 transitions. [2022-03-15 14:42:38,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:38,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:38,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:38,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 14:42:38,801 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:38,802 INFO L85 PathProgramCache]: Analyzing trace with hash 36120766, now seen corresponding path program 9 times [2022-03-15 14:42:38,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:38,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985382990] [2022-03-15 14:42:38,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:38,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:39,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:39,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:39,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985382990] [2022-03-15 14:42:39,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985382990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:39,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:39,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:42:39,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749620939] [2022-03-15 14:42:39,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:39,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:42:39,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:39,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:42:39,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:42:39,022 INFO L87 Difference]: Start difference. First operand 83072 states and 398599 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:41,625 INFO L93 Difference]: Finished difference Result 161234 states and 752693 transitions. [2022-03-15 14:42:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 14:42:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:43,158 INFO L225 Difference]: With dead ends: 161234 [2022-03-15 14:42:43,159 INFO L226 Difference]: Without dead ends: 158705 [2022-03-15 14:42:43,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:42:43,159 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 423 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:43,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1010 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:42:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158705 states. [2022-03-15 14:42:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158705 to 84062. [2022-03-15 14:42:47,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84062 states, 84061 states have (on average 4.80986426523596) internal successors, (404322), 84061 states have internal predecessors, (404322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84062 states to 84062 states and 404322 transitions. [2022-03-15 14:42:48,343 INFO L78 Accepts]: Start accepts. Automaton has 84062 states and 404322 transitions. Word has length 101 [2022-03-15 14:42:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:48,344 INFO L470 AbstractCegarLoop]: Abstraction has 84062 states and 404322 transitions. [2022-03-15 14:42:48,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 84062 states and 404322 transitions. [2022-03-15 14:42:48,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:48,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:48,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:48,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 14:42:48,624 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:48,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:48,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1927490498, now seen corresponding path program 10 times [2022-03-15 14:42:48,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:48,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097065433] [2022-03-15 14:42:48,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:48,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:49,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:49,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097065433] [2022-03-15 14:42:49,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097065433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:49,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:49,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:42:49,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919355196] [2022-03-15 14:42:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:49,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:42:49,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:49,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:42:49,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:42:49,184 INFO L87 Difference]: Start difference. First operand 84062 states and 404322 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:50,562 INFO L93 Difference]: Finished difference Result 120211 states and 557854 transitions. [2022-03-15 14:42:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:42:50,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:50,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:42:51,641 INFO L225 Difference]: With dead ends: 120211 [2022-03-15 14:42:51,641 INFO L226 Difference]: Without dead ends: 120121 [2022-03-15 14:42:51,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:42:51,641 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 423 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:42:51,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 507 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:42:51,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120121 states. [2022-03-15 14:42:54,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120121 to 83495. [2022-03-15 14:42:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83495 states, 83494 states have (on average 4.808609001844444) internal successors, (401490), 83494 states have internal predecessors, (401490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83495 states to 83495 states and 401490 transitions. [2022-03-15 14:42:55,529 INFO L78 Accepts]: Start accepts. Automaton has 83495 states and 401490 transitions. Word has length 101 [2022-03-15 14:42:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:42:55,529 INFO L470 AbstractCegarLoop]: Abstraction has 83495 states and 401490 transitions. [2022-03-15 14:42:55,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 83495 states and 401490 transitions. [2022-03-15 14:42:56,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:42:56,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:42:56,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:42:56,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 14:42:56,193 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:42:56,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:42:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash 660852210, now seen corresponding path program 11 times [2022-03-15 14:42:56,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:42:56,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320729349] [2022-03-15 14:42:56,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:42:56,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:42:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:42:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:42:56,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:42:56,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320729349] [2022-03-15 14:42:56,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320729349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:42:56,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:42:56,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:42:56,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261050156] [2022-03-15 14:42:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:42:56,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:42:56,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:42:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:42:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:42:56,427 INFO L87 Difference]: Start difference. First operand 83495 states and 401490 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:42:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:42:59,459 INFO L93 Difference]: Finished difference Result 202242 states and 926888 transitions. [2022-03-15 14:42:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:42:59,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:42:59,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:01,224 INFO L225 Difference]: With dead ends: 202242 [2022-03-15 14:43:01,225 INFO L226 Difference]: Without dead ends: 199860 [2022-03-15 14:43:01,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-15 14:43:01,225 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 595 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:01,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [595 Valid, 1500 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:43:01,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199860 states. [2022-03-15 14:43:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199860 to 82968. [2022-03-15 14:43:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82968 states, 82967 states have (on average 4.7995227017971) internal successors, (398202), 82967 states have internal predecessors, (398202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:06,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82968 states to 82968 states and 398202 transitions. [2022-03-15 14:43:06,903 INFO L78 Accepts]: Start accepts. Automaton has 82968 states and 398202 transitions. Word has length 101 [2022-03-15 14:43:06,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:06,903 INFO L470 AbstractCegarLoop]: Abstraction has 82968 states and 398202 transitions. [2022-03-15 14:43:06,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:06,903 INFO L276 IsEmpty]: Start isEmpty. Operand 82968 states and 398202 transitions. [2022-03-15 14:43:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:07,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:07,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:07,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 14:43:07,579 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:07,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:07,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1830885146, now seen corresponding path program 11 times [2022-03-15 14:43:07,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:07,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917111101] [2022-03-15 14:43:07,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:07,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:07,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:07,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:07,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917111101] [2022-03-15 14:43:07,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917111101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:07,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:07,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 14:43:07,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070021481] [2022-03-15 14:43:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:07,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 14:43:07,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:07,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 14:43:07,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:43:07,822 INFO L87 Difference]: Start difference. First operand 82968 states and 398202 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:11,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:11,699 INFO L93 Difference]: Finished difference Result 193282 states and 888699 transitions. [2022-03-15 14:43:11,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 14:43:11,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:14,263 INFO L225 Difference]: With dead ends: 193282 [2022-03-15 14:43:14,264 INFO L226 Difference]: Without dead ends: 193267 [2022-03-15 14:43:14,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=355, Invalid=1285, Unknown=0, NotChecked=0, Total=1640 [2022-03-15 14:43:14,265 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 688 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:14,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 2081 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-15 14:43:14,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193267 states. [2022-03-15 14:43:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193267 to 85214. [2022-03-15 14:43:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85214 states, 85213 states have (on average 4.809148838792203) internal successors, (409802), 85213 states have internal predecessors, (409802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85214 states to 85214 states and 409802 transitions. [2022-03-15 14:43:20,496 INFO L78 Accepts]: Start accepts. Automaton has 85214 states and 409802 transitions. Word has length 101 [2022-03-15 14:43:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:20,496 INFO L470 AbstractCegarLoop]: Abstraction has 85214 states and 409802 transitions. [2022-03-15 14:43:20,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:20,496 INFO L276 IsEmpty]: Start isEmpty. Operand 85214 states and 409802 transitions. [2022-03-15 14:43:20,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:20,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:20,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:20,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 14:43:20,763 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1950829904, now seen corresponding path program 12 times [2022-03-15 14:43:20,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:20,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570429187] [2022-03-15 14:43:20,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:20,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:21,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:21,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570429187] [2022-03-15 14:43:21,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570429187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:21,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:21,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:43:21,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080042562] [2022-03-15 14:43:21,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:21,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:43:21,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:21,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:43:21,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:43:21,015 INFO L87 Difference]: Start difference. First operand 85214 states and 409802 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:22,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:22,858 INFO L93 Difference]: Finished difference Result 96062 states and 458812 transitions. [2022-03-15 14:43:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 14:43:22,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:23,370 INFO L225 Difference]: With dead ends: 96062 [2022-03-15 14:43:23,370 INFO L226 Difference]: Without dead ends: 96062 [2022-03-15 14:43:23,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:43:23,371 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 240 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:23,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 808 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:43:23,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96062 states. [2022-03-15 14:43:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96062 to 86998. [2022-03-15 14:43:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86998 states, 86997 states have (on average 4.80729220547835) internal successors, (418220), 86997 states have internal predecessors, (418220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:27,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86998 states to 86998 states and 418220 transitions. [2022-03-15 14:43:27,196 INFO L78 Accepts]: Start accepts. Automaton has 86998 states and 418220 transitions. Word has length 101 [2022-03-15 14:43:27,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:27,197 INFO L470 AbstractCegarLoop]: Abstraction has 86998 states and 418220 transitions. [2022-03-15 14:43:27,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:27,197 INFO L276 IsEmpty]: Start isEmpty. Operand 86998 states and 418220 transitions. [2022-03-15 14:43:27,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:27,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:27,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:27,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 14:43:27,482 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:27,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1948232730, now seen corresponding path program 12 times [2022-03-15 14:43:27,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:27,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798730242] [2022-03-15 14:43:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:27,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:27,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798730242] [2022-03-15 14:43:27,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798730242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:27,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:27,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:43:27,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927046469] [2022-03-15 14:43:27,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:27,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:43:27,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:43:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:43:27,607 INFO L87 Difference]: Start difference. First operand 86998 states and 418220 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:29,303 INFO L93 Difference]: Finished difference Result 127790 states and 601044 transitions. [2022-03-15 14:43:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 14:43:29,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:29,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:30,024 INFO L225 Difference]: With dead ends: 127790 [2022-03-15 14:43:30,025 INFO L226 Difference]: Without dead ends: 123593 [2022-03-15 14:43:30,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-03-15 14:43:30,348 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 338 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:30,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 757 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:43:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123593 states. [2022-03-15 14:43:33,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123593 to 79804. [2022-03-15 14:43:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79804 states, 79803 states have (on average 4.80649850256256) internal successors, (383573), 79803 states have internal predecessors, (383573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:34,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79804 states to 79804 states and 383573 transitions. [2022-03-15 14:43:34,058 INFO L78 Accepts]: Start accepts. Automaton has 79804 states and 383573 transitions. Word has length 101 [2022-03-15 14:43:34,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:34,058 INFO L470 AbstractCegarLoop]: Abstraction has 79804 states and 383573 transitions. [2022-03-15 14:43:34,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 79804 states and 383573 transitions. [2022-03-15 14:43:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:34,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:34,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:34,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 14:43:34,325 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1859933654, now seen corresponding path program 13 times [2022-03-15 14:43:34,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:34,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553064856] [2022-03-15 14:43:34,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:34,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:34,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:34,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:34,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553064856] [2022-03-15 14:43:34,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553064856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:34,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:34,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:43:34,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544115564] [2022-03-15 14:43:34,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:34,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:43:34,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:34,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:43:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:43:34,481 INFO L87 Difference]: Start difference. First operand 79804 states and 383573 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:36,355 INFO L93 Difference]: Finished difference Result 103702 states and 489651 transitions. [2022-03-15 14:43:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 14:43:36,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:36,966 INFO L225 Difference]: With dead ends: 103702 [2022-03-15 14:43:36,966 INFO L226 Difference]: Without dead ends: 102577 [2022-03-15 14:43:36,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:43:36,967 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 288 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:36,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 976 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:43:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102577 states. [2022-03-15 14:43:39,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102577 to 78668. [2022-03-15 14:43:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78668 states, 78667 states have (on average 4.8054457396366965) internal successors, (378030), 78667 states have internal predecessors, (378030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78668 states to 78668 states and 378030 transitions. [2022-03-15 14:43:40,957 INFO L78 Accepts]: Start accepts. Automaton has 78668 states and 378030 transitions. Word has length 101 [2022-03-15 14:43:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:40,958 INFO L470 AbstractCegarLoop]: Abstraction has 78668 states and 378030 transitions. [2022-03-15 14:43:40,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 78668 states and 378030 transitions. [2022-03-15 14:43:41,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:41,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:41,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:41,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 14:43:41,309 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:41,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash -419595236, now seen corresponding path program 14 times [2022-03-15 14:43:41,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:41,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474636964] [2022-03-15 14:43:41,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:41,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:41,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:41,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:41,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474636964] [2022-03-15 14:43:41,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474636964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:41,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:41,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 14:43:41,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020521999] [2022-03-15 14:43:41,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:41,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 14:43:41,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 14:43:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:43:41,559 INFO L87 Difference]: Start difference. First operand 78668 states and 378030 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:44,393 INFO L93 Difference]: Finished difference Result 142523 states and 669574 transitions. [2022-03-15 14:43:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 14:43:44,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:44,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:45,856 INFO L225 Difference]: With dead ends: 142523 [2022-03-15 14:43:45,857 INFO L226 Difference]: Without dead ends: 142445 [2022-03-15 14:43:45,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:43:45,857 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 365 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:45,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 1508 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 14:43:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142445 states. [2022-03-15 14:43:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142445 to 77331. [2022-03-15 14:43:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77331 states, 77330 states have (on average 4.795965343333765) internal successors, (370872), 77330 states have internal predecessors, (370872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77331 states to 77331 states and 370872 transitions. [2022-03-15 14:43:50,532 INFO L78 Accepts]: Start accepts. Automaton has 77331 states and 370872 transitions. Word has length 101 [2022-03-15 14:43:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:50,532 INFO L470 AbstractCegarLoop]: Abstraction has 77331 states and 370872 transitions. [2022-03-15 14:43:50,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:50,533 INFO L276 IsEmpty]: Start isEmpty. Operand 77331 states and 370872 transitions. [2022-03-15 14:43:50,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:50,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:50,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:50,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 14:43:50,785 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:50,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1860075722, now seen corresponding path program 15 times [2022-03-15 14:43:50,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:50,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417699468] [2022-03-15 14:43:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:50,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:50,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:50,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417699468] [2022-03-15 14:43:50,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417699468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:50,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:50,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 14:43:50,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952847560] [2022-03-15 14:43:50,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:50,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 14:43:50,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:50,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 14:43:50,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:43:50,958 INFO L87 Difference]: Start difference. First operand 77331 states and 370872 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:52,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:43:52,665 INFO L93 Difference]: Finished difference Result 120072 states and 559801 transitions. [2022-03-15 14:43:52,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 14:43:52,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:43:52,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:43:53,394 INFO L225 Difference]: With dead ends: 120072 [2022-03-15 14:43:53,394 INFO L226 Difference]: Without dead ends: 119349 [2022-03-15 14:43:53,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:43:53,395 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 300 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:43:53,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 752 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:43:53,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119349 states. [2022-03-15 14:43:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119349 to 75549. [2022-03-15 14:43:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75549 states, 75548 states have (on average 4.781066341928311) internal successors, (361200), 75548 states have internal predecessors, (361200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75549 states to 75549 states and 361200 transitions. [2022-03-15 14:43:57,356 INFO L78 Accepts]: Start accepts. Automaton has 75549 states and 361200 transitions. Word has length 101 [2022-03-15 14:43:57,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:43:57,356 INFO L470 AbstractCegarLoop]: Abstraction has 75549 states and 361200 transitions. [2022-03-15 14:43:57,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:43:57,356 INFO L276 IsEmpty]: Start isEmpty. Operand 75549 states and 361200 transitions. [2022-03-15 14:43:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:43:57,603 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:43:57,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:43:57,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 14:43:57,603 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:43:57,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:43:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1925832130, now seen corresponding path program 16 times [2022-03-15 14:43:57,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:43:57,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249771254] [2022-03-15 14:43:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:43:57,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:43:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:43:57,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:43:57,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:43:57,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249771254] [2022-03-15 14:43:57,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249771254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:43:57,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:43:57,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 14:43:57,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145946482] [2022-03-15 14:43:57,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:43:57,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:43:57,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:43:57,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:43:57,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:43:57,778 INFO L87 Difference]: Start difference. First operand 75549 states and 361200 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:00,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:44:00,499 INFO L93 Difference]: Finished difference Result 168177 states and 777388 transitions. [2022-03-15 14:44:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:44:00,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:44:00,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:44:01,627 INFO L225 Difference]: With dead ends: 168177 [2022-03-15 14:44:01,627 INFO L226 Difference]: Without dead ends: 167169 [2022-03-15 14:44:01,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-03-15 14:44:01,628 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 645 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:44:01,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 1029 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:44:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167169 states. [2022-03-15 14:44:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167169 to 75397. [2022-03-15 14:44:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75397 states, 75396 states have (on average 4.776831662157144) internal successors, (360154), 75396 states have internal predecessors, (360154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:06,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75397 states to 75397 states and 360154 transitions. [2022-03-15 14:44:06,738 INFO L78 Accepts]: Start accepts. Automaton has 75397 states and 360154 transitions. Word has length 101 [2022-03-15 14:44:06,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:44:06,739 INFO L470 AbstractCegarLoop]: Abstraction has 75397 states and 360154 transitions. [2022-03-15 14:44:06,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 75397 states and 360154 transitions. [2022-03-15 14:44:07,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:44:07,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:44:07,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:44:07,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 14:44:07,694 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:44:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:44:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash -479684052, now seen corresponding path program 17 times [2022-03-15 14:44:07,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:44:07,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087701938] [2022-03-15 14:44:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:44:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:44:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:44:08,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:44:08,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:44:08,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087701938] [2022-03-15 14:44:08,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087701938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:44:08,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:44:08,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 14:44:08,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793001305] [2022-03-15 14:44:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:44:08,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 14:44:08,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:44:08,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 14:44:08,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:44:08,146 INFO L87 Difference]: Start difference. First operand 75397 states and 360154 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:44:09,880 INFO L93 Difference]: Finished difference Result 109565 states and 510234 transitions. [2022-03-15 14:44:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:44:09,880 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:44:09,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:44:10,876 INFO L225 Difference]: With dead ends: 109565 [2022-03-15 14:44:10,876 INFO L226 Difference]: Without dead ends: 109277 [2022-03-15 14:44:10,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:44:10,877 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 453 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:44:10,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 1251 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:44:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109277 states. [2022-03-15 14:44:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109277 to 76601. [2022-03-15 14:44:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76601 states, 76600 states have (on average 4.778563968668407) internal successors, (366038), 76600 states have internal predecessors, (366038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76601 states to 76601 states and 366038 transitions. [2022-03-15 14:44:14,581 INFO L78 Accepts]: Start accepts. Automaton has 76601 states and 366038 transitions. Word has length 101 [2022-03-15 14:44:14,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:44:14,582 INFO L470 AbstractCegarLoop]: Abstraction has 76601 states and 366038 transitions. [2022-03-15 14:44:14,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:14,582 INFO L276 IsEmpty]: Start isEmpty. Operand 76601 states and 366038 transitions. [2022-03-15 14:44:14,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:44:14,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:44:14,836 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:44:14,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 14:44:14,836 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:44:14,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:44:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1443693090, now seen corresponding path program 18 times [2022-03-15 14:44:14,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:44:14,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725994662] [2022-03-15 14:44:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:44:14,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:44:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:44:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:44:15,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:44:15,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725994662] [2022-03-15 14:44:15,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725994662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:44:15,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:44:15,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 14:44:15,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912282925] [2022-03-15 14:44:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:44:15,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 14:44:15,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:44:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 14:44:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:44:15,048 INFO L87 Difference]: Start difference. First operand 76601 states and 366038 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:16,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:44:16,607 INFO L93 Difference]: Finished difference Result 91709 states and 434945 transitions. [2022-03-15 14:44:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 14:44:16,607 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-03-15 14:44:16,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:44:17,085 INFO L225 Difference]: With dead ends: 91709 [2022-03-15 14:44:17,085 INFO L226 Difference]: Without dead ends: 89693 [2022-03-15 14:44:17,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:44:17,086 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 194 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:44:17,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 782 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:44:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89693 states. [2022-03-15 14:44:19,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89693 to 73685. [2022-03-15 14:44:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73685 states, 73684 states have (on average 4.771442918408338) internal successors, (351579), 73684 states have internal predecessors, (351579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:20,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73685 states to 73685 states and 351579 transitions. [2022-03-15 14:44:20,524 INFO L78 Accepts]: Start accepts. Automaton has 73685 states and 351579 transitions. Word has length 101 [2022-03-15 14:44:20,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:44:20,524 INFO L470 AbstractCegarLoop]: Abstraction has 73685 states and 351579 transitions. [2022-03-15 14:44:20,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:20,524 INFO L276 IsEmpty]: Start isEmpty. Operand 73685 states and 351579 transitions. [2022-03-15 14:44:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-15 14:44:20,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:44:20,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:44:20,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 14:44:20,794 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:44:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:44:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2016603415, now seen corresponding path program 1 times [2022-03-15 14:44:20,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:44:20,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795750532] [2022-03-15 14:44:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:44:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:44:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:44:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:44:21,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:44:21,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795750532] [2022-03-15 14:44:21,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795750532] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:44:21,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934501767] [2022-03-15 14:44:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:44:21,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:44:21,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:44:21,112 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) [2022-03-15 14:44:21,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:44:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:44:21,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-15 14:44:21,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:44:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:44:30,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:44:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:44:32,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934501767] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:44:32,296 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:44:32,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 28 [2022-03-15 14:44:32,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058888489] [2022-03-15 14:44:32,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:44:32,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-15 14:44:32,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:44:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-15 14:44:32,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=616, Unknown=1, NotChecked=0, Total=756 [2022-03-15 14:44:32,298 INFO L87 Difference]: Start difference. First operand 73685 states and 351579 transitions. Second operand has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:44:37,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-15 14:44:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:44:51,510 INFO L93 Difference]: Finished difference Result 446884 states and 2056079 transitions. [2022-03-15 14:44:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-15 14:44:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 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 104 [2022-03-15 14:44:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:44:55,670 INFO L225 Difference]: With dead ends: 446884 [2022-03-15 14:44:55,670 INFO L226 Difference]: Without dead ends: 420622 [2022-03-15 14:44:55,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 191 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2461 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=1804, Invalid=6205, Unknown=1, NotChecked=0, Total=8010 [2022-03-15 14:44:55,672 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1861 mSDsluCounter, 6010 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 408 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:44:55,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 5747 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2198 Invalid, 1 Unknown, 408 Unchecked, 6.4s Time] [2022-03-15 14:44:57,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420622 states. [2022-03-15 14:45:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420622 to 103085. [2022-03-15 14:45:08,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103085 states, 103084 states have (on average 4.793003763920686) internal successors, (494082), 103084 states have internal predecessors, (494082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:45:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103085 states to 103085 states and 494082 transitions. [2022-03-15 14:45:09,938 INFO L78 Accepts]: Start accepts. Automaton has 103085 states and 494082 transitions. Word has length 104 [2022-03-15 14:45:09,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:45:09,939 INFO L470 AbstractCegarLoop]: Abstraction has 103085 states and 494082 transitions. [2022-03-15 14:45:09,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.571428571428571) internal successors, (184), 28 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:45:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 103085 states and 494082 transitions. [2022-03-15 14:45:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-15 14:45:10,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:45:10,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:45:10,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 14:45:10,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:45:10,848 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:45:10,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:45:10,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1476725079, now seen corresponding path program 1 times [2022-03-15 14:45:10,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:45:10,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147248650] [2022-03-15 14:45:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:45:10,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:45:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:45:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:45:11,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:45:11,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147248650] [2022-03-15 14:45:11,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147248650] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:45:11,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408813113] [2022-03-15 14:45:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:45:11,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:45:11,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:45:11,139 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) [2022-03-15 14:45:11,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:45:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:45:11,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-15 14:45:11,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:45:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:45:14,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:45:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:45:15,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408813113] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:45:15,223 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:45:15,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 27 [2022-03-15 14:45:15,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124015190] [2022-03-15 14:45:15,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:45:15,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-15 14:45:15,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:45:15,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-15 14:45:15,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=582, Unknown=0, NotChecked=0, Total=702 [2022-03-15 14:45:15,225 INFO L87 Difference]: Start difference. First operand 103085 states and 494082 transitions. Second operand has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:46:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:46:21,168 INFO L93 Difference]: Finished difference Result 746825 states and 3427109 transitions. [2022-03-15 14:46:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 405 states. [2022-03-15 14:46:21,168 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 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 104 [2022-03-15 14:46:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:46:33,305 INFO L225 Difference]: With dead ends: 746825 [2022-03-15 14:46:33,306 INFO L226 Difference]: Without dead ends: 730007 [2022-03-15 14:46:33,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 415 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80188 ImplicationChecksByTransitivity, 53.3s TimeCoverageRelationStatistics Valid=22724, Invalid=150743, Unknown=5, NotChecked=0, Total=173472 [2022-03-15 14:46:33,321 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 5473 mSDsluCounter, 9490 mSDsCounter, 0 mSdLazyCounter, 4882 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5473 SdHoareTripleChecker+Valid, 9252 SdHoareTripleChecker+Invalid, 5984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 4882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 403 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:46:33,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5473 Valid, 9252 Invalid, 5984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 4882 Invalid, 0 Unknown, 403 Unchecked, 3.2s Time] [2022-03-15 14:46:35,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730007 states. [2022-03-15 14:46:59,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730007 to 156623. [2022-03-15 14:47:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156623 states, 156622 states have (on average 4.892856686800067) internal successors, (766329), 156622 states have internal predecessors, (766329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:47:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156623 states to 156623 states and 766329 transitions. [2022-03-15 14:47:02,103 INFO L78 Accepts]: Start accepts. Automaton has 156623 states and 766329 transitions. Word has length 104 [2022-03-15 14:47:02,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:47:02,103 INFO L470 AbstractCegarLoop]: Abstraction has 156623 states and 766329 transitions. [2022-03-15 14:47:02,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.148148148148148) internal successors, (193), 27 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:47:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand 156623 states and 766329 transitions. [2022-03-15 14:47:03,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-03-15 14:47:03,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:47:03,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:47:03,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-15 14:47:03,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-03-15 14:47:03,295 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:47:03,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:47:03,297 INFO L85 PathProgramCache]: Analyzing trace with hash -561403401, now seen corresponding path program 2 times [2022-03-15 14:47:03,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:47:03,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509643773] [2022-03-15 14:47:03,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:47:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:47:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:47:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:47:03,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:47:03,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509643773] [2022-03-15 14:47:03,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509643773] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:47:03,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923500228] [2022-03-15 14:47:03,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:47:03,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:47:03,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:47:03,584 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) [2022-03-15 14:47:03,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:47:03,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:47:03,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:47:03,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-15 14:47:03,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:47:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:47:04,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:47:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:47:05,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923500228] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:47:05,099 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:47:05,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 36 [2022-03-15 14:47:05,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173008940] [2022-03-15 14:47:05,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:47:05,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-15 14:47:05,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:47:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-15 14:47:05,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1075, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:47:05,101 INFO L87 Difference]: Start difference. First operand 156623 states and 766329 transitions. Second operand has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 36 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 14:49:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1290 states. [2022-03-15 14:49:17,153 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 [2022-03-15 14:49:17,182 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 14:49:17,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1488 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 1301 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872041 ImplicationChecksByTransitivity, 79.1s TimeCoverageRelationStatistics Valid=171611, Invalid=1524895, Unknown=0, NotChecked=0, Total=1696506 [2022-03-15 14:49:17,336 INFO L933 BasicCegarLoop]: 1476 mSDtfsCounter, 10854 mSDsluCounter, 23306 mSDsCounter, 0 mSdLazyCounter, 15814 mSolverCounterSat, 2150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10854 SdHoareTripleChecker+Valid, 22941 SdHoareTripleChecker+Invalid, 17964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2150 IncrementalHoareTripleChecker+Valid, 15814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:49:17,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10854 Valid, 22941 Invalid, 17964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2150 Valid, 15814 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-03-15 14:49:17,339 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-15 14:49:17,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-15 14:49:17,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-03-15 14:49:17,553 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). [2022-03-15 14:49:17,555 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 14:49:17,555 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 14:49:17,555 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 14:49:17,555 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 14:49:17,557 INFO L732 BasicCegarLoop]: Path program histogram: [18, 12, 8, 6, 2, 1, 1, 1] [2022-03-15 14:49:17,559 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 14:49:17,559 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 14:49:17,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 02:49:17 BasicIcfg [2022-03-15 14:49:17,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 14:49:17,576 INFO L158 Benchmark]: Toolchain (without parser) took 592446.97ms. Allocated memory was 182.5MB in the beginning and 8.0GB in the end (delta: 7.8GB). Free memory was 125.2MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-03-15 14:49:17,576 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 182.5MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 14:49:17,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.07ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 125.0MB in the beginning and 238.7MB in the end (delta: -113.7MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-03-15 14:49:17,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.56ms. Allocated memory is still 268.4MB. Free memory was 238.7MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 14:49:17,585 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 268.4MB. Free memory was 236.6MB in the beginning and 235.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 14:49:17,585 INFO L158 Benchmark]: RCFGBuilder took 617.47ms. Allocated memory is still 268.4MB. Free memory was 235.6MB in the beginning and 217.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-15 14:49:17,585 INFO L158 Benchmark]: TraceAbstraction took 591480.01ms. Allocated memory was 268.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 217.2MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. [2022-03-15 14:49:17,586 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 182.5MB. Free memory is still 141.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 265.07ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 125.0MB in the beginning and 238.7MB in the end (delta: -113.7MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.56ms. Allocated memory is still 268.4MB. Free memory was 238.7MB in the beginning and 236.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 268.4MB. Free memory was 236.6MB in the beginning and 235.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 617.47ms. Allocated memory is still 268.4MB. Free memory was 235.6MB in the beginning and 217.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 591480.01ms. Allocated memory was 268.4MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 217.2MB in the beginning and 2.5GB in the end (delta: -2.3GB). Peak memory consumption was 5.4GB. Max. memory is 8.0GB. * 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: 139]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (156623states) and FLOYD_HOARE automaton (currently 1290 states, 36 states before enhancement),while ReachableStatesComputation was computing reachable states (2092008 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 158 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 591.3s, OverallIterations: 49, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 15.3s, AutomataDifference: 349.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 34891 SdHoareTripleChecker+Valid, 31.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34891 mSDsluCounter, 73206 SdHoareTripleChecker+Invalid, 25.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 811 IncrementalHoareTripleChecker+Unchecked, 68871 mSDsCounter, 3890 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37245 IncrementalHoareTripleChecker+Invalid, 41947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3890 mSolverCounterUnsat, 10807 mSDtfsCounter, 37245 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3533 GetRequests, 1171 SyntacticMatches, 20 SemanticMatches, 2342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955887 ImplicationChecksByTransitivity, 157.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156623occurred in iteration=48, InterpolantAutomatonStates: 975, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 194.6s AutomataMinimizationTime, 48 MinimizatonAttempts, 2832780 StatesRemovedByMinimization, 47 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 5567 NumberOfCodeBlocks, 5567 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 6021 ConstructedInterpolants, 27 QuantifiedInterpolants, 38066 SizeOfPredicates, 75 NumberOfNonLiveVariables, 1620 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 60 InterpolantComputations, 46 PerfectInterpolantSequences, 50/67 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 [2022-03-15 14:49:17,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !ENTRY org.eclipse.osgi 4 0 2022-03-15 14:49:17.823 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043270ab1/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043270ab1/.metadata/.log.