/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:15:49,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:15:49,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:15:49,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:15:50,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:15:50,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:15:50,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:15:50,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 15:15:50,056 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:15:50,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:15:50,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:15:50,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:15:50,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:15:50,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:15:50,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:15:50,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:15:50,059 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:15:50,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:15:50,060 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:15:50,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:15:50,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:15:50,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:15:50,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:15:50,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:15:50,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:15:50,062 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:15:50,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:15:50,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:15:50,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:15:50,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:15:50,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:15:50,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:15:50,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:15:50,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:15:50,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:15:50,064 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:15:50,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:15:50,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:15:50,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:15:50,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:15:50,325 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:15:50,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2022-03-01 15:15:50,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70fc7376/1bf4fa0f892d47cc859d3c7a47533176/FLAG565384fc3 [2022-03-01 15:15:50,783 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:15:50,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2022-03-01 15:15:50,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70fc7376/1bf4fa0f892d47cc859d3c7a47533176/FLAG565384fc3 [2022-03-01 15:15:51,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70fc7376/1bf4fa0f892d47cc859d3c7a47533176 [2022-03-01 15:15:51,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:15:51,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:15:51,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:15:51,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:15:51,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:15:51,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29efb73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51, skipping insertion in model container [2022-03-01 15:15:51,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:15:51,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:15:51,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2022-03-01 15:15:51,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:15:51,398 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:15:51,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2022-03-01 15:15:51,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:15:51,429 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:15:51,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51 WrapperNode [2022-03-01 15:15:51,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:15:51,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:15:51,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:15:51,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:15:51,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,463 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-03-01 15:15:51,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:15:51,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:15:51,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:15:51,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:15:51,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:15:51,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:15:51,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:15:51,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:15:51,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (1/1) ... [2022-03-01 15:15:51,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:15:51,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:15:51,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 15:15:51,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 15:15:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:15:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:15:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:15:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:15:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:15:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 15:15:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 15:15:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 15:15:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:15:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:15:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:15:51,551 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:15:51,671 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:15:51,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:15:51,959 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:15:51,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:15:51,967 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-01 15:15:51,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:15:51 BoogieIcfgContainer [2022-03-01 15:15:51,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:15:51,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:15:51,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:15:51,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:15:51,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:15:51" (1/3) ... [2022-03-01 15:15:51,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d91a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:15:51, skipping insertion in model container [2022-03-01 15:15:51,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:15:51" (2/3) ... [2022-03-01 15:15:51,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d91a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:15:51, skipping insertion in model container [2022-03-01 15:15:51,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:15:51" (3/3) ... [2022-03-01 15:15:51,977 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2022-03-01 15:15:51,984 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:15:51,985 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:15:51,985 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:15:51,985 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:15:52,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,048 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,049 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,051 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,052 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,056 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,059 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,060 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,065 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,066 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,069 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,072 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,073 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,074 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,074 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:15:52,086 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 15:15:52,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:15:52,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:15:52,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 15:15:52,152 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 129 transitions, 290 flow [2022-03-01 15:15:52,651 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-01 15:15:52,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:15:52,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:15:52,778 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:15:52,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:15:52,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1010931886, now seen corresponding path program 1 times [2022-03-01 15:15:52,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:15:52,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415484452] [2022-03-01 15:15:52,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:52,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:15:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:53,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:15:53,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415484452] [2022-03-01 15:15:53,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415484452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:15:53,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:15:53,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 15:15:53,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451439644] [2022-03-01 15:15:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:15:53,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-01 15:15:53,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:15:53,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-01 15:15:53,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:15:53,155 INFO L87 Difference]: Start difference. First operand has 7558 states, 7557 states have (on average 5.038904327113934) internal successors, (38079), 7557 states have internal predecessors, (38079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:53,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:15:53,397 INFO L93 Difference]: Finished difference Result 7558 states and 33532 transitions. [2022-03-01 15:15:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 15:15:53,400 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-01 15:15:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:15:53,524 INFO L225 Difference]: With dead ends: 7558 [2022-03-01 15:15:53,524 INFO L226 Difference]: Without dead ends: 7556 [2022-03-01 15:15:53,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-01 15:15:53,534 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:15:53,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:15:53,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2022-03-01 15:15:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7556. [2022-03-01 15:15:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 7555 states have (on average 4.43812045003309) internal successors, (33530), 7555 states have internal predecessors, (33530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 33530 transitions. [2022-03-01 15:15:54,047 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 33530 transitions. Word has length 92 [2022-03-01 15:15:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:15:54,047 INFO L470 AbstractCegarLoop]: Abstraction has 7556 states and 33530 transitions. [2022-03-01 15:15:54,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 33530 transitions. [2022-03-01 15:15:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-01 15:15:54,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:15:54,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:15:54,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:15:54,083 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:15:54,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:15:54,084 INFO L85 PathProgramCache]: Analyzing trace with hash 249249086, now seen corresponding path program 1 times [2022-03-01 15:15:54,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:15:54,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702582961] [2022-03-01 15:15:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:54,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:15:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:54,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:15:54,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702582961] [2022-03-01 15:15:54,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702582961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:15:54,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:15:54,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:15:54,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235432101] [2022-03-01 15:15:54,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:15:54,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:15:54,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:15:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:15:54,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:15:54,690 INFO L87 Difference]: Start difference. First operand 7556 states and 33530 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:15:55,123 INFO L93 Difference]: Finished difference Result 11457 states and 50676 transitions. [2022-03-01 15:15:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:15:55,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-03-01 15:15:55,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:15:55,303 INFO L225 Difference]: With dead ends: 11457 [2022-03-01 15:15:55,303 INFO L226 Difference]: Without dead ends: 11010 [2022-03-01 15:15:55,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:15:55,307 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 111 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:15:55,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 382 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:15:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-01 15:15:55,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8895. [2022-03-01 15:15:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8895 states, 8894 states have (on average 4.411963121205307) internal successors, (39240), 8894 states have internal predecessors, (39240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8895 states to 8895 states and 39240 transitions. [2022-03-01 15:15:55,842 INFO L78 Accepts]: Start accepts. Automaton has 8895 states and 39240 transitions. Word has length 92 [2022-03-01 15:15:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:15:55,843 INFO L470 AbstractCegarLoop]: Abstraction has 8895 states and 39240 transitions. [2022-03-01 15:15:55,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 8895 states and 39240 transitions. [2022-03-01 15:15:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:15:55,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:15:55,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:15:55,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:15:55,889 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:15:55,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:15:55,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1729481647, now seen corresponding path program 1 times [2022-03-01 15:15:55,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:15:55,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270453949] [2022-03-01 15:15:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:55,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:15:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:56,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:15:56,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270453949] [2022-03-01 15:15:56,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270453949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:15:56,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:15:56,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:15:56,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914531306] [2022-03-01 15:15:56,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:15:56,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:15:56,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:15:56,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:15:56,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:15:56,065 INFO L87 Difference]: Start difference. First operand 8895 states and 39240 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:15:56,578 INFO L93 Difference]: Finished difference Result 14124 states and 61986 transitions. [2022-03-01 15:15:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:15:56,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-03-01 15:15:56,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:15:56,698 INFO L225 Difference]: With dead ends: 14124 [2022-03-01 15:15:56,698 INFO L226 Difference]: Without dead ends: 13815 [2022-03-01 15:15:56,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:15:56,702 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 176 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:15:56,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 411 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:15:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13815 states. [2022-03-01 15:15:57,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13815 to 10113. [2022-03-01 15:15:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10113 states, 10112 states have (on average 4.403876582278481) internal successors, (44532), 10112 states have internal predecessors, (44532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10113 states to 10113 states and 44532 transitions. [2022-03-01 15:15:57,240 INFO L78 Accepts]: Start accepts. Automaton has 10113 states and 44532 transitions. Word has length 95 [2022-03-01 15:15:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:15:57,241 INFO L470 AbstractCegarLoop]: Abstraction has 10113 states and 44532 transitions. [2022-03-01 15:15:57,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 10113 states and 44532 transitions. [2022-03-01 15:15:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:15:57,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:15:57,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:15:57,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:15:57,290 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:15:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:15:57,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1518612705, now seen corresponding path program 1 times [2022-03-01 15:15:57,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:15:57,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595778183] [2022-03-01 15:15:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:57,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:15:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:57,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:15:57,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595778183] [2022-03-01 15:15:57,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595778183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:15:57,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:15:57,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:15:57,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587099466] [2022-03-01 15:15:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:15:57,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:15:57,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:15:57,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:15:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:15:57,740 INFO L87 Difference]: Start difference. First operand 10113 states and 44532 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:15:58,140 INFO L93 Difference]: Finished difference Result 12228 states and 52992 transitions. [2022-03-01 15:15:58,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 15:15:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-03-01 15:15:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:15:58,239 INFO L225 Difference]: With dead ends: 12228 [2022-03-01 15:15:58,240 INFO L226 Difference]: Without dead ends: 11796 [2022-03-01 15:15:58,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:15:58,241 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 162 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:15:58,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 252 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:15:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11796 states. [2022-03-01 15:15:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11796 to 10002. [2022-03-01 15:15:58,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10002 states, 10001 states have (on average 4.395760423957604) internal successors, (43962), 10001 states have internal predecessors, (43962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10002 states to 10002 states and 43962 transitions. [2022-03-01 15:15:58,749 INFO L78 Accepts]: Start accepts. Automaton has 10002 states and 43962 transitions. Word has length 95 [2022-03-01 15:15:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:15:58,749 INFO L470 AbstractCegarLoop]: Abstraction has 10002 states and 43962 transitions. [2022-03-01 15:15:58,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:15:58,750 INFO L276 IsEmpty]: Start isEmpty. Operand 10002 states and 43962 transitions. [2022-03-01 15:15:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:15:58,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:15:58,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:15:58,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:15:58,791 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:15:58,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:15:58,791 INFO L85 PathProgramCache]: Analyzing trace with hash -444560868, now seen corresponding path program 1 times [2022-03-01 15:15:58,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:15:58,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374114043] [2022-03-01 15:15:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:15:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:58,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:15:58,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374114043] [2022-03-01 15:15:58,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374114043] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:15:58,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959069402] [2022-03-01 15:15:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:15:58,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:15:58,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:15:58,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:15:58,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-01 15:15:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:15:59,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-01 15:15:59,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:15:59,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:59,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:15:59,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:15:59,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959069402] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:15:59,954 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:15:59,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-03-01 15:15:59,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827956353] [2022-03-01 15:15:59,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:15:59,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:15:59,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:15:59,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:15:59,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:15:59,956 INFO L87 Difference]: Start difference. First operand 10002 states and 43962 transitions. Second operand has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:00,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:16:00,471 INFO L93 Difference]: Finished difference Result 18585 states and 81461 transitions. [2022-03-01 15:16:00,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 15:16:00,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 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 95 [2022-03-01 15:16:00,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:16:00,592 INFO L225 Difference]: With dead ends: 18585 [2022-03-01 15:16:00,592 INFO L226 Difference]: Without dead ends: 18585 [2022-03-01 15:16:00,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-03-01 15:16:00,593 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 582 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:16:00,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 565 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:16:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18585 states. [2022-03-01 15:16:01,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18585 to 11067. [2022-03-01 15:16:01,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11067 states, 11066 states have (on average 4.415055123802639) internal successors, (48857), 11066 states have internal predecessors, (48857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11067 states to 11067 states and 48857 transitions. [2022-03-01 15:16:01,286 INFO L78 Accepts]: Start accepts. Automaton has 11067 states and 48857 transitions. Word has length 95 [2022-03-01 15:16:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:16:01,286 INFO L470 AbstractCegarLoop]: Abstraction has 11067 states and 48857 transitions. [2022-03-01 15:16:01,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 11067 states and 48857 transitions. [2022-03-01 15:16:01,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:16:01,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:16:01,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:16:01,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-01 15:16:01,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:16:01,544 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:16:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:16:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1366202236, now seen corresponding path program 2 times [2022-03-01 15:16:01,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:16:01,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991517121] [2022-03-01 15:16:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:16:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:01,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:16:01,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991517121] [2022-03-01 15:16:01,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991517121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:16:01,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:16:01,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:16:01,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955689687] [2022-03-01 15:16:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:16:01,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:16:01,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:16:01,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:16:01,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:16:01,934 INFO L87 Difference]: Start difference. First operand 11067 states and 48857 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:16:02,211 INFO L93 Difference]: Finished difference Result 12243 states and 53460 transitions. [2022-03-01 15:16:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-01 15:16:02,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-03-01 15:16:02,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:16:02,270 INFO L225 Difference]: With dead ends: 12243 [2022-03-01 15:16:02,270 INFO L226 Difference]: Without dead ends: 12018 [2022-03-01 15:16:02,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:16:02,271 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 137 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:16:02,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 251 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:16:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2022-03-01 15:16:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 11019. [2022-03-01 15:16:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11019 states, 11018 states have (on average 4.421038300962062) internal successors, (48711), 11018 states have internal predecessors, (48711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11019 states to 11019 states and 48711 transitions. [2022-03-01 15:16:02,662 INFO L78 Accepts]: Start accepts. Automaton has 11019 states and 48711 transitions. Word has length 95 [2022-03-01 15:16:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:16:02,662 INFO L470 AbstractCegarLoop]: Abstraction has 11019 states and 48711 transitions. [2022-03-01 15:16:02,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 11019 states and 48711 transitions. [2022-03-01 15:16:02,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:16:02,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:16:02,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:16:02,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:16:02,699 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:16:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:16:02,700 INFO L85 PathProgramCache]: Analyzing trace with hash 823248679, now seen corresponding path program 2 times [2022-03-01 15:16:02,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:16:02,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381958099] [2022-03-01 15:16:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:02,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:16:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:02,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:16:02,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381958099] [2022-03-01 15:16:02,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381958099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:16:02,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:16:02,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:16:02,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537919172] [2022-03-01 15:16:02,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:16:02,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:16:02,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:16:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:16:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:16:02,903 INFO L87 Difference]: Start difference. First operand 11019 states and 48711 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:16:03,257 INFO L93 Difference]: Finished difference Result 13173 states and 58095 transitions. [2022-03-01 15:16:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:16:03,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-03-01 15:16:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:16:03,330 INFO L225 Difference]: With dead ends: 13173 [2022-03-01 15:16:03,331 INFO L226 Difference]: Without dead ends: 13173 [2022-03-01 15:16:03,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:16:03,332 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 151 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:16:03,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 418 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:16:03,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13173 states. [2022-03-01 15:16:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13173 to 12009. [2022-03-01 15:16:03,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12009 states, 12008 states have (on average 4.438790806129247) internal successors, (53301), 12008 states have internal predecessors, (53301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:03,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12009 states to 12009 states and 53301 transitions. [2022-03-01 15:16:03,790 INFO L78 Accepts]: Start accepts. Automaton has 12009 states and 53301 transitions. Word has length 95 [2022-03-01 15:16:03,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:16:03,790 INFO L470 AbstractCegarLoop]: Abstraction has 12009 states and 53301 transitions. [2022-03-01 15:16:03,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12009 states and 53301 transitions. [2022-03-01 15:16:03,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:16:03,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:16:03,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:16:03,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:16:03,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:16:03,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:16:03,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1562291266, now seen corresponding path program 1 times [2022-03-01 15:16:03,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:16:03,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211544783] [2022-03-01 15:16:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:03,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:16:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:03,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:16:03,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211544783] [2022-03-01 15:16:03,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211544783] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:16:03,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027213732] [2022-03-01 15:16:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:03,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:16:03,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:16:03,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:16:03,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 15:16:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:04,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-01 15:16:04,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 15:16:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:04,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 15:16:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:04,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027213732] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 15:16:04,668 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 15:16:04,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-03-01 15:16:04,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108467900] [2022-03-01 15:16:04,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 15:16:04,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:16:04,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:16:04,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:16:04,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:16:04,670 INFO L87 Difference]: Start difference. First operand 12009 states and 53301 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:05,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:16:05,256 INFO L93 Difference]: Finished difference Result 27870 states and 122527 transitions. [2022-03-01 15:16:05,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 15:16:05,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 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 95 [2022-03-01 15:16:05,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:16:05,390 INFO L225 Difference]: With dead ends: 27870 [2022-03-01 15:16:05,390 INFO L226 Difference]: Without dead ends: 27870 [2022-03-01 15:16:05,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-03-01 15:16:05,391 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 689 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:16:05,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 642 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:16:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27870 states. [2022-03-01 15:16:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27870 to 14142. [2022-03-01 15:16:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14142 states, 14141 states have (on average 4.4849727742026735) internal successors, (63422), 14141 states have internal predecessors, (63422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14142 states to 14142 states and 63422 transitions. [2022-03-01 15:16:06,069 INFO L78 Accepts]: Start accepts. Automaton has 14142 states and 63422 transitions. Word has length 95 [2022-03-01 15:16:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:16:06,069 INFO L470 AbstractCegarLoop]: Abstraction has 14142 states and 63422 transitions. [2022-03-01 15:16:06,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 10 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 14142 states and 63422 transitions. [2022-03-01 15:16:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-01 15:16:06,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:16:06,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:16:06,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 15:16:06,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-03-01 15:16:06,312 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:16:06,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:16:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash -277204909, now seen corresponding path program 2 times [2022-03-01 15:16:06,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:16:06,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771957076] [2022-03-01 15:16:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:16:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:06,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:16:06,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771957076] [2022-03-01 15:16:06,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771957076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:16:06,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:16:06,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-01 15:16:06,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591146572] [2022-03-01 15:16:06,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:16:06,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-01 15:16:06,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:16:06,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-01 15:16:06,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-01 15:16:06,430 INFO L87 Difference]: Start difference. First operand 14142 states and 63422 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:06,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:16:06,806 INFO L93 Difference]: Finished difference Result 27300 states and 120181 transitions. [2022-03-01 15:16:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:16:06,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-03-01 15:16:06,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:16:06,951 INFO L225 Difference]: With dead ends: 27300 [2022-03-01 15:16:06,951 INFO L226 Difference]: Without dead ends: 27300 [2022-03-01 15:16:06,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:16:06,952 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 208 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:16:06,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 418 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:16:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27300 states. [2022-03-01 15:16:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27300 to 15552. [2022-03-01 15:16:07,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15552 states, 15551 states have (on average 4.492379911259726) internal successors, (69861), 15551 states have internal predecessors, (69861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15552 states to 15552 states and 69861 transitions. [2022-03-01 15:16:07,535 INFO L78 Accepts]: Start accepts. Automaton has 15552 states and 69861 transitions. Word has length 95 [2022-03-01 15:16:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:16:07,535 INFO L470 AbstractCegarLoop]: Abstraction has 15552 states and 69861 transitions. [2022-03-01 15:16:07,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:16:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 15552 states and 69861 transitions. [2022-03-01 15:16:07,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-01 15:16:07,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:16:07,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:16:07,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:16:07,710 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 15:16:07,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:16:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash -180229615, now seen corresponding path program 1 times [2022-03-01 15:16:07,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:16:07,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527830621] [2022-03-01 15:16:07,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:07,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:16:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:08,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:16:08,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:16:08,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527830621] [2022-03-01 15:16:08,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527830621] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 15:16:08,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173047641] [2022-03-01 15:16:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:16:08,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:16:08,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:16:08,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 15:16:08,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 15:16:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:16:08,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-01 15:16:08,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-01 15:30:18,349 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 15:30:18,349 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-01 15:30:18,447 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-03-01 15:30:18,450 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-03-01 15:30:18,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 15:30:18,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 15:30:18,651 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-03-01 15:30:18,653 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-01 15:30:18,653 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-01 15:30:18,653 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-01 15:30:18,653 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-01 15:30:18,656 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-03-01 15:30:18,658 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 15:30:18,659 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 15:30:18,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 03:30:18 BasicIcfg [2022-03-01 15:30:18,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 15:30:18,662 INFO L158 Benchmark]: Toolchain (without parser) took 867477.05ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 147.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-03-01 15:30:18,662 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 164.1MB in the beginning and 164.0MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 15:30:18,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.19ms. Allocated memory is still 198.2MB. Free memory was 147.4MB in the beginning and 173.2MB in the end (delta: -25.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-03-01 15:30:18,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.43ms. Allocated memory is still 198.2MB. Free memory was 173.2MB in the beginning and 171.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:30:18,664 INFO L158 Benchmark]: Boogie Preprocessor took 25.08ms. Allocated memory is still 198.2MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:30:18,664 INFO L158 Benchmark]: RCFGBuilder took 478.76ms. Allocated memory is still 198.2MB. Free memory was 170.1MB in the beginning and 156.0MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-01 15:30:18,665 INFO L158 Benchmark]: TraceAbstraction took 866691.45ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 155.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-03-01 15:30:18,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory was 164.1MB in the beginning and 164.0MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 241.19ms. Allocated memory is still 198.2MB. Free memory was 147.4MB in the beginning and 173.2MB in the end (delta: -25.8MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.43ms. Allocated memory is still 198.2MB. Free memory was 173.2MB in the beginning and 171.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.08ms. Allocated memory is still 198.2MB. Free memory was 171.2MB in the beginning and 170.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 478.76ms. Allocated memory is still 198.2MB. Free memory was 170.1MB in the beginning and 156.0MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 866691.45ms. Allocated memory was 198.2MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 155.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 99 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-1031-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 148 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 866.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2216 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2216 mSDsluCounter, 3437 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2747 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1330 IncrementalHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 978 mSDtfsCounter, 1330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 382 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15552occurred in iteration=9, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 42768 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1039 NumberOfCodeBlocks, 1039 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1216 ConstructedInterpolants, 0 QuantifiedInterpolants, 11741 SizeOfPredicates, 20 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 5/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown