/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-06 19:05:55,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-06 19:05:55,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-06 19:05:55,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-06 19:05:55,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-06 19:05:55,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-06 19:05:55,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-06 19:05:55,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-06 19:05:55,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-06 19:05:55,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-06 19:05:55,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-06 19:05:55,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-06 19:05:55,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-06 19:05:55,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-06 19:05:55,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-06 19:05:55,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-06 19:05:55,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-06 19:05:55,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-06 19:05:55,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-06 19:05:55,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-06 19:05:55,879 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-Delay.epf [2021-08-06 19:05:55,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-06 19:05:55,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-06 19:05:55,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-06 19:05:55,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-06 19:05:55,910 INFO L138 SettingsManager]: * Use SBE=true [2021-08-06 19:05:55,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-06 19:05:55,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-06 19:05:55,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-06 19:05:55,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-06 19:05:55,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-06 19:05:55,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-06 19:05:55,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-06 19:05:55,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:05:55,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-06 19:05:55,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-06 19:05:55,914 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-06 19:05:55,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-06 19:05:56,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-06 19:05:56,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-06 19:05:56,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-06 19:05:56,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-06 19:05:56,187 INFO L275 PluginConnector]: CDTParser initialized [2021-08-06 19:05:56,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-08-06 19:05:56,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3355afbef/baddb6be452f4d9087e61ff5d73f4ccc/FLAG16948b0c0 [2021-08-06 19:05:56,640 INFO L306 CDTParser]: Found 1 translation units. [2021-08-06 19:05:56,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-08-06 19:05:56,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3355afbef/baddb6be452f4d9087e61ff5d73f4ccc/FLAG16948b0c0 [2021-08-06 19:05:56,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3355afbef/baddb6be452f4d9087e61ff5d73f4ccc [2021-08-06 19:05:56,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-06 19:05:56,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-06 19:05:56,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-06 19:05:56,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-06 19:05:56,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-06 19:05:56,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:05:56" (1/1) ... [2021-08-06 19:05:56,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d75ee22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:56, skipping insertion in model container [2021-08-06 19:05:56,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.08 07:05:56" (1/1) ... [2021-08-06 19:05:56,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-06 19:05:56,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-06 19:05:56,810 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-08-06 19:05:56,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:05:56,962 INFO L203 MainTranslator]: Completed pre-run [2021-08-06 19:05:56,969 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-08-06 19:05:56,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-06 19:05:57,011 INFO L208 MainTranslator]: Completed translation [2021-08-06 19:05:57,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57 WrapperNode [2021-08-06 19:05:57,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-06 19:05:57,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-06 19:05:57,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-06 19:05:57,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-06 19:05:57,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-06 19:05:57,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-06 19:05:57,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-06 19:05:57,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-06 19:05:57,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-06 19:05:57,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-06 19:05:57,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-06 19:05:57,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-06 19:05:57,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (1/1) ... [2021-08-06 19:05:57,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-06 19:05:57,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-06 19:05:57,071 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) [2021-08-06 19:05:57,088 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 [2021-08-06 19:05:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-06 19:05:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-06 19:05:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-06 19:05:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-06 19:05:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-06 19:05:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-06 19:05:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-06 19:05:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-06 19:05:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-06 19:05:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-06 19:05:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-06 19:05:57,105 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-06 19:05:57,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-06 19:05:57,472 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-06 19:05:57,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:05:57 BoogieIcfgContainer [2021-08-06 19:05:57,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-06 19:05:57,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-06 19:05:57,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-06 19:05:57,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-06 19:05:57,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.08 07:05:56" (1/3) ... [2021-08-06 19:05:57,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701c28c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:05:57, skipping insertion in model container [2021-08-06 19:05:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.08 07:05:57" (2/3) ... [2021-08-06 19:05:57,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701c28c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.08 07:05:57, skipping insertion in model container [2021-08-06 19:05:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.08 07:05:57" (3/3) ... [2021-08-06 19:05:57,480 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-08-06 19:05:57,486 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-06 19:05:57,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-06 19:05:57,486 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-06 19:05:57,486 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-06 19:05:57,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,530 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,532 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,532 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,534 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,534 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,534 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,536 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,536 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,536 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,537 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,540 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,540 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,540 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,540 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,543 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,544 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,544 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-06 19:05:57,550 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-06 19:05:57,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-06 19:05:57,591 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-06 19:05:57,591 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-06 19:05:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:05:59,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-06 19:05:59,369 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:05:59,369 INFO L512 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] [2021-08-06 19:05:59,370 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)] === [2021-08-06 19:05:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:05:59,374 INFO L82 PathProgramCache]: Analyzing trace with hash -368205386, now seen corresponding path program 1 times [2021-08-06 19:05:59,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:05:59,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252211539] [2021-08-06 19:05:59,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:05:59,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:05:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:05:59,691 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:05:59,696 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:05:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:05:59,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:05:59,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252211539] [2021-08-06 19:05:59,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252211539] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:05:59,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:05:59,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:05:59,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610355355] [2021-08-06 19:05:59,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:05:59,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:05:59,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:05:59,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:05:59,883 INFO L87 Difference]: Start difference. First operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 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 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:00,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:00,369 INFO L93 Difference]: Finished difference Result 32916 states and 59407 transitions. [2021-08-06 19:06:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:00,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-08-06 19:06:00,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:00,447 INFO L225 Difference]: With dead ends: 32916 [2021-08-06 19:06:00,447 INFO L226 Difference]: Without dead ends: 11308 [2021-08-06 19:06:00,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 259.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-06 19:06:00,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11308 states. [2021-08-06 19:06:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11308 to 11308. [2021-08-06 19:06:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11308 states, 11098 states have (on average 2.4163813299693637) internal successors, (26817), 11307 states have internal predecessors, (26817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11308 states to 11308 states and 26817 transitions. [2021-08-06 19:06:00,956 INFO L78 Accepts]: Start accepts. Automaton has 11308 states and 26817 transitions. Word has length 57 [2021-08-06 19:06:00,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:00,957 INFO L470 AbstractCegarLoop]: Abstraction has 11308 states and 26817 transitions. [2021-08-06 19:06:00,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:00,957 INFO L276 IsEmpty]: Start isEmpty. Operand 11308 states and 26817 transitions. [2021-08-06 19:06:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-06 19:06:00,969 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:00,969 INFO L512 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] [2021-08-06 19:06:00,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-06 19:06:00,970 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)] === [2021-08-06 19:06:00,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:00,971 INFO L82 PathProgramCache]: Analyzing trace with hash 136073527, now seen corresponding path program 1 times [2021-08-06 19:06:00,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:00,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516166140] [2021-08-06 19:06:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:00,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:01,092 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:01,097 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:01,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:01,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516166140] [2021-08-06 19:06:01,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516166140] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:01,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:01,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:06:01,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173253243] [2021-08-06 19:06:01,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:06:01,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:01,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:06:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:06:01,211 INFO L87 Difference]: Start difference. First operand 11308 states and 26817 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:01,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:01,659 INFO L93 Difference]: Finished difference Result 14668 states and 35569 transitions. [2021-08-06 19:06:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-06 19:06:01,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-06 19:06:01,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:01,769 INFO L225 Difference]: With dead ends: 14668 [2021-08-06 19:06:01,769 INFO L226 Difference]: Without dead ends: 11236 [2021-08-06 19:06:01,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 320.9ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-06 19:06:01,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11236 states. [2021-08-06 19:06:01,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11236 to 11236. [2021-08-06 19:06:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11236 states, 11026 states have (on average 2.413658625068021) internal successors, (26613), 11235 states have internal predecessors, (26613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11236 states to 11236 states and 26613 transitions. [2021-08-06 19:06:01,993 INFO L78 Accepts]: Start accepts. Automaton has 11236 states and 26613 transitions. Word has length 59 [2021-08-06 19:06:01,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:01,993 INFO L470 AbstractCegarLoop]: Abstraction has 11236 states and 26613 transitions. [2021-08-06 19:06:01,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 11236 states and 26613 transitions. [2021-08-06 19:06:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-06 19:06:02,003 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:02,004 INFO L512 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] [2021-08-06 19:06:02,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-06 19:06:02,004 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)] === [2021-08-06 19:06:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:02,004 INFO L82 PathProgramCache]: Analyzing trace with hash 250256505, now seen corresponding path program 1 times [2021-08-06 19:06:02,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:02,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384042865] [2021-08-06 19:06:02,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:02,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:02,092 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:02,096 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:02,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:02,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384042865] [2021-08-06 19:06:02,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384042865] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:02,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:02,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:06:02,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681180755] [2021-08-06 19:06:02,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:06:02,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:02,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:06:02,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:06:02,202 INFO L87 Difference]: Start difference. First operand 11236 states and 26613 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:02,488 INFO L93 Difference]: Finished difference Result 14404 states and 37083 transitions. [2021-08-06 19:06:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:06:02,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-08-06 19:06:02,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:02,507 INFO L225 Difference]: With dead ends: 14404 [2021-08-06 19:06:02,508 INFO L226 Difference]: Without dead ends: 6268 [2021-08-06 19:06:02,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:06:02,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-08-06 19:06:02,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 6268. [2021-08-06 19:06:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6268 states, 6058 states have (on average 2.854572466160449) internal successors, (17293), 6267 states have internal predecessors, (17293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6268 states to 6268 states and 17293 transitions. [2021-08-06 19:06:02,637 INFO L78 Accepts]: Start accepts. Automaton has 6268 states and 17293 transitions. Word has length 60 [2021-08-06 19:06:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:02,637 INFO L470 AbstractCegarLoop]: Abstraction has 6268 states and 17293 transitions. [2021-08-06 19:06:02,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 6268 states and 17293 transitions. [2021-08-06 19:06:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-08-06 19:06:02,643 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:02,643 INFO L512 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] [2021-08-06 19:06:02,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-06 19:06:02,643 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)] === [2021-08-06 19:06:02,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:02,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1868119094, now seen corresponding path program 1 times [2021-08-06 19:06:02,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:02,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113846197] [2021-08-06 19:06:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:02,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:02,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:02,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113846197] [2021-08-06 19:06:02,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113846197] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:02,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:02,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:02,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047996101] [2021-08-06 19:06:02,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:02,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:02,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:02,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:02,728 INFO L87 Difference]: Start difference. First operand 6268 states and 17293 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:02,859 INFO L93 Difference]: Finished difference Result 7108 states and 20441 transitions. [2021-08-06 19:06:02,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:02,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-08-06 19:06:02,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:02,879 INFO L225 Difference]: With dead ends: 7108 [2021-08-06 19:06:02,879 INFO L226 Difference]: Without dead ends: 4774 [2021-08-06 19:06:02,880 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:02,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2021-08-06 19:06:02,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4774. [2021-08-06 19:06:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 4624 states have (on average 2.9167387543252596) internal successors, (13487), 4773 states have internal predecessors, (13487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 13487 transitions. [2021-08-06 19:06:02,968 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 13487 transitions. Word has length 61 [2021-08-06 19:06:02,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:02,970 INFO L470 AbstractCegarLoop]: Abstraction has 4774 states and 13487 transitions. [2021-08-06 19:06:02,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 13487 transitions. [2021-08-06 19:06:02,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-06 19:06:02,977 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:02,977 INFO L512 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] [2021-08-06 19:06:02,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-06 19:06:02,978 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)] === [2021-08-06 19:06:02,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:02,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1007514571, now seen corresponding path program 1 times [2021-08-06 19:06:02,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:02,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534267495] [2021-08-06 19:06:02,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:02,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:03,059 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:03,061 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:03,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:03,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534267495] [2021-08-06 19:06:03,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534267495] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:03,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:03,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:06:03,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880929583] [2021-08-06 19:06:03,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:06:03,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:03,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:06:03,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:06:03,120 INFO L87 Difference]: Start difference. First operand 4774 states and 13487 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:03,247 INFO L93 Difference]: Finished difference Result 6834 states and 20010 transitions. [2021-08-06 19:06:03,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 19:06:03,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-08-06 19:06:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:03,256 INFO L225 Difference]: With dead ends: 6834 [2021-08-06 19:06:03,256 INFO L226 Difference]: Without dead ends: 3288 [2021-08-06 19:06:03,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 91.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:06:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-08-06 19:06:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2021-08-06 19:06:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3188 states have (on average 2.998431618569636) internal successors, (9559), 3287 states have internal predecessors, (9559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 9559 transitions. [2021-08-06 19:06:03,313 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 9559 transitions. Word has length 63 [2021-08-06 19:06:03,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:03,313 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 9559 transitions. [2021-08-06 19:06:03,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 9559 transitions. [2021-08-06 19:06:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-06 19:06:03,317 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:03,317 INFO L512 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] [2021-08-06 19:06:03,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-06 19:06:03,317 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)] === [2021-08-06 19:06:03,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:03,318 INFO L82 PathProgramCache]: Analyzing trace with hash -2005893868, now seen corresponding path program 1 times [2021-08-06 19:06:03,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:03,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297909916] [2021-08-06 19:06:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:03,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:03,366 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,367 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:03,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:03,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297909916] [2021-08-06 19:06:03,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297909916] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:03,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:03,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-06 19:06:03,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287587240] [2021-08-06 19:06:03,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-06 19:06:03,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:03,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-06 19:06:03,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-06 19:06:03,379 INFO L87 Difference]: Start difference. First operand 3288 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:03,477 INFO L93 Difference]: Finished difference Result 4372 states and 12521 transitions. [2021-08-06 19:06:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-06 19:06:03,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-08-06 19:06:03,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:03,486 INFO L225 Difference]: With dead ends: 4372 [2021-08-06 19:06:03,486 INFO L226 Difference]: Without dead ends: 3144 [2021-08-06 19:06:03,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-08-06 19:06:03,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3144. [2021-08-06 19:06:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3044 states have (on average 3.0272667542706966) internal successors, (9215), 3143 states have internal predecessors, (9215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 9215 transitions. [2021-08-06 19:06:03,550 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 9215 transitions. Word has length 65 [2021-08-06 19:06:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:03,550 INFO L470 AbstractCegarLoop]: Abstraction has 3144 states and 9215 transitions. [2021-08-06 19:06:03,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 9215 transitions. [2021-08-06 19:06:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-06 19:06:03,554 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:03,554 INFO L512 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] [2021-08-06 19:06:03,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-06 19:06:03,555 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)] === [2021-08-06 19:06:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:03,555 INFO L82 PathProgramCache]: Analyzing trace with hash 488378848, now seen corresponding path program 1 times [2021-08-06 19:06:03,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:03,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982399556] [2021-08-06 19:06:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:03,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:03,645 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,646 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:03,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:03,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982399556] [2021-08-06 19:06:03,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982399556] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:03,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:03,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:06:03,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581624399] [2021-08-06 19:06:03,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:06:03,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:03,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:06:03,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:06:03,658 INFO L87 Difference]: Start difference. First operand 3144 states and 9215 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:03,787 INFO L93 Difference]: Finished difference Result 3705 states and 10633 transitions. [2021-08-06 19:06:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-06 19:06:03,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-08-06 19:06:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:03,794 INFO L225 Difference]: With dead ends: 3705 [2021-08-06 19:06:03,794 INFO L226 Difference]: Without dead ends: 2569 [2021-08-06 19:06:03,794 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 85.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-06 19:06:03,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2021-08-06 19:06:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2569. [2021-08-06 19:06:03,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2473 states have (on average 3.028710068742418) internal successors, (7490), 2568 states have internal predecessors, (7490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 7490 transitions. [2021-08-06 19:06:03,845 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 7490 transitions. Word has length 66 [2021-08-06 19:06:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:03,845 INFO L470 AbstractCegarLoop]: Abstraction has 2569 states and 7490 transitions. [2021-08-06 19:06:03,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 7490 transitions. [2021-08-06 19:06:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-06 19:06:03,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:03,849 INFO L512 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] [2021-08-06 19:06:03,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-06 19:06:03,849 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)] === [2021-08-06 19:06:03,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:03,850 INFO L82 PathProgramCache]: Analyzing trace with hash 796927355, now seen corresponding path program 1 times [2021-08-06 19:06:03,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:03,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702288876] [2021-08-06 19:06:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:03,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:03,913 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,914 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:03,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:03,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702288876] [2021-08-06 19:06:03,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702288876] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:03,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:03,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-06 19:06:03,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220787148] [2021-08-06 19:06:03,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-06 19:06:03,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:03,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-06 19:06:03,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-06 19:06:03,927 INFO L87 Difference]: Start difference. First operand 2569 states and 7490 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:04,050 INFO L93 Difference]: Finished difference Result 2398 states and 6651 transitions. [2021-08-06 19:06:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-06 19:06:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-08-06 19:06:04,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:04,053 INFO L225 Difference]: With dead ends: 2398 [2021-08-06 19:06:04,053 INFO L226 Difference]: Without dead ends: 1558 [2021-08-06 19:06:04,053 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 79.7ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-06 19:06:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-08-06 19:06:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2021-08-06 19:06:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1486 states have (on average 2.833109017496635) internal successors, (4210), 1557 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 4210 transitions. [2021-08-06 19:06:04,078 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 4210 transitions. Word has length 67 [2021-08-06 19:06:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:04,079 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 4210 transitions. [2021-08-06 19:06:04,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 4210 transitions. [2021-08-06 19:06:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-06 19:06:04,081 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:04,081 INFO L512 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] [2021-08-06 19:06:04,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-06 19:06:04,081 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)] === [2021-08-06 19:06:04,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:04,082 INFO L82 PathProgramCache]: Analyzing trace with hash 567104634, now seen corresponding path program 1 times [2021-08-06 19:06:04,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:04,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71199503] [2021-08-06 19:06:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:04,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:04,159 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:04,160 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 10, result has 47.4 percent of original size [2021-08-06 19:06:04,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:04,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:04,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71199503] [2021-08-06 19:06:04,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71199503] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:04,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:04,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-06 19:06:04,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552442771] [2021-08-06 19:06:04,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-06 19:06:04,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:04,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-06 19:06:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-06 19:06:04,174 INFO L87 Difference]: Start difference. First operand 1558 states and 4210 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:04,322 INFO L93 Difference]: Finished difference Result 1072 states and 2685 transitions. [2021-08-06 19:06:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-06 19:06:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-08-06 19:06:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:04,324 INFO L225 Difference]: With dead ends: 1072 [2021-08-06 19:06:04,324 INFO L226 Difference]: Without dead ends: 631 [2021-08-06 19:06:04,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 106.1ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-08-06 19:06:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-08-06 19:06:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2021-08-06 19:06:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 604 states have (on average 2.3427152317880795) internal successors, (1415), 630 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1415 transitions. [2021-08-06 19:06:04,332 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1415 transitions. Word has length 69 [2021-08-06 19:06:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:04,332 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 1415 transitions. [2021-08-06 19:06:04,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1415 transitions. [2021-08-06 19:06:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-06 19:06:04,333 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:04,333 INFO L512 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] [2021-08-06 19:06:04,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-06 19:06:04,334 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)] === [2021-08-06 19:06:04,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1611891141, now seen corresponding path program 1 times [2021-08-06 19:06:04,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:04,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983405432] [2021-08-06 19:06:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:04,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:04,363 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:04,365 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:04,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:04,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983405432] [2021-08-06 19:06:04,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983405432] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:04,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:06:04,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815182845] [2021-08-06 19:06:04,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:06:04,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:06:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:06:04,421 INFO L87 Difference]: Start difference. First operand 631 states and 1415 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:04,504 INFO L93 Difference]: Finished difference Result 997 states and 2395 transitions. [2021-08-06 19:06:04,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 19:06:04,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-08-06 19:06:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:04,505 INFO L225 Difference]: With dead ends: 997 [2021-08-06 19:06:04,505 INFO L226 Difference]: Without dead ends: 599 [2021-08-06 19:06:04,506 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 77.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:04,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-08-06 19:06:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 567. [2021-08-06 19:06:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 540 states have (on average 2.412962962962963) internal successors, (1303), 566 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1303 transitions. [2021-08-06 19:06:04,512 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1303 transitions. Word has length 71 [2021-08-06 19:06:04,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:04,512 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1303 transitions. [2021-08-06 19:06:04,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1303 transitions. [2021-08-06 19:06:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-06 19:06:04,513 INFO L504 BasicCegarLoop]: Found error trace [2021-08-06 19:06:04,513 INFO L512 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] [2021-08-06 19:06:04,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-06 19:06:04,513 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)] === [2021-08-06 19:06:04,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-06 19:06:04,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1848623557, now seen corresponding path program 2 times [2021-08-06 19:06:04,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-06 19:06:04,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865327107] [2021-08-06 19:06:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-06 19:06:04,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-06 19:06:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-06 19:06:04,537 WARN L248 tifierPushTermWalker]: Quantifier elimination called on non-simplified input: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:04,539 WARN L260 tifierPushTermWalker]: Quantifier elimination failed to simlify output: treesize reduction 3, result has 85.0 percent of original size [2021-08-06 19:06:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-06 19:06:04,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-06 19:06:04,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865327107] [2021-08-06 19:06:04,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865327107] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-06 19:06:04,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-06 19:06:04,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-06 19:06:04,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052543500] [2021-08-06 19:06:04,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-06 19:06:04,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-06 19:06:04,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-06 19:06:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-06 19:06:04,585 INFO L87 Difference]: Start difference. First operand 567 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-06 19:06:04,649 INFO L93 Difference]: Finished difference Result 459 states and 1087 transitions. [2021-08-06 19:06:04,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-06 19:06:04,649 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-08-06 19:06:04,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-06 19:06:04,649 INFO L225 Difference]: With dead ends: 459 [2021-08-06 19:06:04,649 INFO L226 Difference]: Without dead ends: 0 [2021-08-06 19:06:04,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-06 19:06:04,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-06 19:06:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-06 19:06:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-06 19:06:04,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-08-06 19:06:04,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-06 19:06:04,650 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-06 19:06:04,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-06 19:06:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-06 19:06:04,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-06 19:06:04,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-06 19:06:04,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-06 19:06:04,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-06 19:06:04,652 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-06 19:06:04,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-06 19:06:04,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-06 19:06:04,655 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-06 19:06:04,655 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-06 19:06:04,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.08 07:06:04 BasicIcfg [2021-08-06 19:06:04,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-06 19:06:04,656 INFO L168 Benchmark]: Toolchain (without parser) took 7995.72 ms. Allocated memory was 186.6 MB in the beginning and 1.1 GB in the end (delta: 909.1 MB). Free memory was 149.2 MB in the beginning and 252.5 MB in the end (delta: -103.3 MB). Peak memory consumption was 806.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 186.6 MB. Free memory is still 167.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.25 ms. Allocated memory is still 186.6 MB. Free memory was 149.0 MB in the beginning and 159.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.45 ms. Allocated memory is still 186.6 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: Boogie Preprocessor took 13.82 ms. Allocated memory is still 186.6 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: RCFGBuilder took 420.70 ms. Allocated memory is still 186.6 MB. Free memory was 155.7 MB in the beginning and 130.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L168 Benchmark]: TraceAbstraction took 7180.45 ms. Allocated memory was 186.6 MB in the beginning and 1.1 GB in the end (delta: 909.1 MB). Free memory was 129.8 MB in the beginning and 252.5 MB in the end (delta: -122.7 MB). Peak memory consumption was 786.8 MB. Max. memory is 8.0 GB. [2021-08-06 19:06:04,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 186.6 MB. Free memory is still 167.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 350.25 ms. Allocated memory is still 186.6 MB. Free memory was 149.0 MB in the beginning and 159.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.45 ms. Allocated memory is still 186.6 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.82 ms. Allocated memory is still 186.6 MB. Free memory was 157.1 MB in the beginning and 155.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.70 ms. Allocated memory is still 186.6 MB. Free memory was 155.7 MB in the beginning and 130.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7180.45 ms. Allocated memory was 186.6 MB in the beginning and 1.1 GB in the end (delta: 909.1 MB). Free memory was 129.8 MB in the beginning and 252.5 MB in the end (delta: -122.7 MB). Peak memory consumption was 786.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132501, positive: 129258, positive conditional: 129258, positive unconditional: 0, negative: 3243, negative conditional: 3243, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132051, positive: 129258, positive conditional: 0, positive unconditional: 129258, negative: 2793, negative conditional: 0, negative unconditional: 2793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 984, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 984, positive: 956, positive conditional: 0, positive unconditional: 956, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 87, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132051, positive: 128295, positive conditional: 0, positive unconditional: 128295, negative: 2772, negative conditional: 0, negative unconditional: 2772, unknown: 984, unknown conditional: 0, unknown unconditional: 984] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 450 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 7070.9ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 183.6ms, AutomataDifference: 2437.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1640.8ms, PartialOrderReductionTime: 1623.1ms, HoareTripleCheckerStatistics: 1226 SDtfs, 1839 SDslu, 4123 SDs, 0 SdLazy, 561 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 448.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1377.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1148.9ms AutomataMinimizationTime, 11 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.7ms SsaConstructionTime, 187.9ms SatisfiabilityAnalysisTime, 1282.3ms InterpolantComputationTime, 709 NumberOfCodeBlocks, 709 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 698 ConstructedInterpolants, 0 QuantifiedInterpolants, 2708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-06 19:06:04,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...