/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-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 18:44:00,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 18:44:00,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 18:44:00,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 18:44:00,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 18:44:00,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 18:44:00,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 18:44:00,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 18:44:00,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 18:44:00,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 18:44:00,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 18:44:00,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 18:44:00,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 18:44:00,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 18:44:00,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 18:44:00,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 18:44:00,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 18:44:00,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 18:44:00,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 18:44:00,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 18:44:00,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 18:44:00,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 18:44:00,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 18:44:00,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 18:44:00,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-28 18:44:00,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 18:44:00,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 18:44:00,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 18:44:00,983 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-POR-NewStatesSleep-NoLbe.epf [2022-01-28 18:44:01,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 18:44:01,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 18:44:01,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 18:44:01,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 18:44:01,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 18:44:01,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 18:44:01,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 18:44:01,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 18:44:01,018 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 18:44:01,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 18:44:01,019 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 18:44:01,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 18:44:01,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 18:44:01,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 18:44:01,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 18:44:01,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 18:44:01,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 18:44:01,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 18:44:01,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 18:44:01,023 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 18:44:01,023 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-28 18:44:01,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 18:44:01,023 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-01-28 18:44:01,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 18:44:01,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 18:44:01,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 18:44:01,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 18:44:01,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-28 18:44:01,305 INFO L275 PluginConnector]: CDTParser initialized [2022-01-28 18:44:01,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-01-28 18:44:01,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae01c66da/127ec665c73a4f3cae66b14d9cd12678/FLAG2a361ccee [2022-01-28 18:44:01,770 INFO L306 CDTParser]: Found 1 translation units. [2022-01-28 18:44:01,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-01-28 18:44:01,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae01c66da/127ec665c73a4f3cae66b14d9cd12678/FLAG2a361ccee [2022-01-28 18:44:02,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae01c66da/127ec665c73a4f3cae66b14d9cd12678 [2022-01-28 18:44:02,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 18:44:02,164 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-28 18:44:02,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-28 18:44:02,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-28 18:44:02,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-28 18:44:02,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5317771c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02, skipping insertion in model container [2022-01-28 18:44:02,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-28 18:44:02,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-28 18:44:02,364 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/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-01-28 18:44:02,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 18:44:02,385 INFO L203 MainTranslator]: Completed pre-run [2022-01-28 18:44:02,401 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/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-01-28 18:44:02,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-28 18:44:02,413 INFO L208 MainTranslator]: Completed translation [2022-01-28 18:44:02,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02 WrapperNode [2022-01-28 18:44:02,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-28 18:44:02,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 18:44:02,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 18:44:02,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 18:44:02,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,445 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-01-28 18:44:02,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 18:44:02,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 18:44:02,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 18:44:02,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 18:44:02,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 18:44:02,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 18:44:02,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 18:44:02,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 18:44:02,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (1/1) ... [2022-01-28 18:44:02,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 18:44:02,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 18:44:02,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-28 18:44:02,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-28 18:44:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-28 18:44:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-28 18:44:02,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-28 18:44:02,525 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-28 18:44:02,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 18:44:02,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 18:44:02,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-28 18:44:02,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-28 18:44:02,528 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 18:44:02,636 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 18:44:02,638 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 18:44:02,867 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 18:44:02,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 18:44:02,924 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-28 18:44:02,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:44:02 BoogieIcfgContainer [2022-01-28 18:44:02,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 18:44:02,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 18:44:02,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 18:44:02,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 18:44:02,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:44:02" (1/3) ... [2022-01-28 18:44:02,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb9902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:44:02, skipping insertion in model container [2022-01-28 18:44:02,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:44:02" (2/3) ... [2022-01-28 18:44:02,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb9902c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:44:02, skipping insertion in model container [2022-01-28 18:44:02,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:44:02" (3/3) ... [2022-01-28 18:44:02,934 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2022-01-28 18:44:02,939 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 18:44:02,940 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 18:44:02,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 18:44:02,940 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 18:44:02,973 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,974 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,974 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,974 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,974 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,974 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,975 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,976 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,977 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,977 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,978 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,979 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,979 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,979 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,980 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,980 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,980 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,982 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,982 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,983 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,987 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,988 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,988 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,989 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,990 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,990 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 18:44:02,997 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-28 18:44:03,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-28 18:44:03,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 18:44:03,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-28 18:44:03,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-01-28 18:44:03,078 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 18:44:03,085 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 18:44:03,086 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-28 18:44:03,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:03,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 489249638, now seen corresponding path program 1 times [2022-01-28 18:44:03,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:03,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796968979] [2022-01-28 18:44:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:03,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:03,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:03,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796968979] [2022-01-28 18:44:03,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796968979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 18:44:03,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 18:44:03,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-28 18:44:03,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085280193] [2022-01-28 18:44:03,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 18:44:03,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-28 18:44:03,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:44:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-28 18:44:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-28 18:44:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:03,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:44:03,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:44:03,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:03,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:03,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 18:44:03,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:03,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1040236633, now seen corresponding path program 1 times [2022-01-28 18:44:03,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:03,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484688871] [2022-01-28 18:44:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:03,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:03,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:03,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484688871] [2022-01-28 18:44:03,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484688871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 18:44:03,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 18:44:03,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-28 18:44:03,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464904393] [2022-01-28 18:44:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 18:44:03,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-28 18:44:03,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:44:03,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-28 18:44:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-28 18:44:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:03,841 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:44:03,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:03,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-28 18:44:04,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 18:44:04,009 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash -894117372, now seen corresponding path program 1 times [2022-01-28 18:44:04,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:04,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544450267] [2022-01-28 18:44:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:04,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:04,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:04,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544450267] [2022-01-28 18:44:04,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544450267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 18:44:04,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 18:44:04,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 18:44:04,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946716659] [2022-01-28 18:44:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 18:44:04,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 18:44:04,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:44:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 18:44:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-28 18:44:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,149 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:44:04,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:44:04,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-01-28 18:44:04,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:44:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:44:04,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 18:44:04,342 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:04,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1934098060, now seen corresponding path program 1 times [2022-01-28 18:44:04,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:04,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945461558] [2022-01-28 18:44:04,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:04,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:04,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 18:44:04,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:04,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945461558] [2022-01-28 18:44:04,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945461558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 18:44:04,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 18:44:04,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 18:44:04,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284602338] [2022-01-28 18:44:04,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 18:44:04,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 18:44:04,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:44:04,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 18:44:04,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-28 18:44:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,440 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:44:04,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:44:04,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:44:04,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:44:04,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:44:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:44:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 18:44:04,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 18:44:04,563 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:04,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:04,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1072426179, now seen corresponding path program 2 times [2022-01-28 18:44:04,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:04,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283900425] [2022-01-28 18:44:04,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:04,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:10,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283900425] [2022-01-28 18:44:10,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283900425] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 18:44:10,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351337569] [2022-01-28 18:44:10,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-28 18:44:10,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:44:10,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 18:44:10,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 18:44:10,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-28 18:44:10,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-28 18:44:10,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 18:44:10,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-28 18:44:10,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 18:44:12,697 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:12,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 18:44:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:29,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351337569] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 18:44:29,938 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 18:44:29,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 18] total 41 [2022-01-28 18:44:29,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035246504] [2022-01-28 18:44:29,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 18:44:29,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-28 18:44:29,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:44:29,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-28 18:44:29,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1395, Unknown=1, NotChecked=0, Total=1640 [2022-01-28 18:44:29,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:29,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:44:29,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 4.317073170731708) internal successors, (177), 41 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:44:29,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:29,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:44:29,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:44:29,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-28 18:44:29,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:44:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:44:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:44:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 18:44:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 18:44:38,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-28 18:44:38,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:44:38,424 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:44:38,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:44:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash 632220060, now seen corresponding path program 3 times [2022-01-28 18:44:38,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:44:38,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348513307] [2022-01-28 18:44:38,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:44:38,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:44:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:44:42,970 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:42,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:44:42,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348513307] [2022-01-28 18:44:42,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348513307] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 18:44:42,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133040319] [2022-01-28 18:44:42,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-28 18:44:42,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:44:42,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 18:44:42,972 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 18:44:42,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-28 18:44:43,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-01-28 18:44:43,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 18:44:43,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-28 18:44:43,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 18:44:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:44:50,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-28 18:46:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:46:04,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133040319] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-28 18:46:04,750 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-28 18:46:04,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 21] total 47 [2022-01-28 18:46:04,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313762211] [2022-01-28 18:46:04,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-28 18:46:04,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-28 18:46:04,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 18:46:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-28 18:46:04,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1824, Unknown=8, NotChecked=0, Total=2162 [2022-01-28 18:46:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:46:04,752 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-28 18:46:04,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.23404255319149) internal successors, (199), 47 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-01-28 18:46:04,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:46:38,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:46:45,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:46:47,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:46:49,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:46:51,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:47:04,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:47:05,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:47:07,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:47:09,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:47:50,151 WARN L227 SmtUtils]: Spent 12.82s on a formula simplification. DAG size of input: 257 DAG size of output: 236 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-28 18:47:51,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:48:23,755 WARN L227 SmtUtils]: Spent 15.68s on a formula simplification. DAG size of input: 250 DAG size of output: 242 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-01-28 18:48:24,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:49:04,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:49:08,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-28 18:51:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-28 18:51:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-28 18:51:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-28 18:51:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-28 18:51:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-28 18:51:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-28 18:51:14,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-28 18:51:14,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:51:14,229 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 18:51:14,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 18:51:14,230 INFO L85 PathProgramCache]: Analyzing trace with hash 741436092, now seen corresponding path program 4 times [2022-01-28 18:51:14,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 18:51:14,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028451247] [2022-01-28 18:51:14,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 18:51:14,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 18:51:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 18:56:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 18:56:31,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 18:56:31,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028451247] [2022-01-28 18:56:31,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028451247] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-28 18:56:31,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980139737] [2022-01-28 18:56:31,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-28 18:56:31,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:56:31,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 18:56:31,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-28 18:56:31,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-28 18:56:33,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-28 18:56:33,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-28 18:56:34,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-28 18:56:34,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-28 18:57:41,753 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-01-28 18:58:25,008 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-28 18:58:25,008 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-28 18:58:25,009 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-28 18:58:25,041 WARN L243 SmtUtils]: Removed 21 from assertion stack [2022-01-28 18:58:25,043 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-28 18:58:25,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-28 18:58:25,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-28 18:58:25,245 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 105 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 163 for 32095ms.. [2022-01-28 18:58:25,246 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-28 18:58:25,246 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-28 18:58:25,251 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-01-28 18:58:25,253 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-28 18:58:25,253 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 18:58:25,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:58:25 BasicIcfg [2022-01-28 18:58:25,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 18:58:25,256 INFO L158 Benchmark]: Toolchain (without parser) took 863091.46ms. Allocated memory was 181.4MB in the beginning and 524.3MB in the end (delta: 342.9MB). Free memory was 122.9MB in the beginning and 227.1MB in the end (delta: -104.1MB). Peak memory consumption was 239.7MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,256 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 18:58:25,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.58ms. Allocated memory was 181.4MB in the beginning and 251.7MB in the end (delta: 70.3MB). Free memory was 122.7MB in the beginning and 223.1MB in the end (delta: -100.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.94ms. Allocated memory is still 251.7MB. Free memory was 223.1MB in the beginning and 221.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,257 INFO L158 Benchmark]: Boogie Preprocessor took 21.63ms. Allocated memory is still 251.7MB. Free memory was 221.5MB in the beginning and 220.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,259 INFO L158 Benchmark]: RCFGBuilder took 457.16ms. Allocated memory is still 251.7MB. Free memory was 220.5MB in the beginning and 205.3MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,259 INFO L158 Benchmark]: TraceAbstraction took 862328.25ms. Allocated memory was 251.7MB in the beginning and 524.3MB in the end (delta: 272.6MB). Free memory was 204.8MB in the beginning and 227.1MB in the end (delta: -22.3MB). Peak memory consumption was 251.9MB. Max. memory is 8.0GB. [2022-01-28 18:58:25,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 247.58ms. Allocated memory was 181.4MB in the beginning and 251.7MB in the end (delta: 70.3MB). Free memory was 122.7MB in the beginning and 223.1MB in the end (delta: -100.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.94ms. Allocated memory is still 251.7MB. Free memory was 223.1MB in the beginning and 221.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.63ms. Allocated memory is still 251.7MB. Free memory was 221.5MB in the beginning and 220.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 457.16ms. Allocated memory is still 251.7MB. Free memory was 220.5MB in the beginning and 205.3MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 862328.25ms. Allocated memory was 251.7MB in the beginning and 524.3MB in the end (delta: 272.6MB). Free memory was 204.8MB in the beginning and 227.1MB in the end (delta: -22.3MB). Peak memory consumption was 251.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 532, positive: 363, positive conditional: 363, positive unconditional: 0, negative: 169, negative conditional: 169, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, positive: 363, positive conditional: 363, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 374, positive: 363, positive conditional: 363, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 401, positive: 363, positive conditional: 299, positive unconditional: 64, negative: 38, negative conditional: 27, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 401, positive: 363, positive conditional: 269, positive unconditional: 94, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 401, positive: 363, positive conditional: 269, positive unconditional: 94, negative: 38, negative conditional: 20, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 113, positive: 105, positive conditional: 74, positive unconditional: 31, negative: 8, negative conditional: 6, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 113, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 6, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 44, negative conditional: 40, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 401, positive: 258, positive conditional: 195, positive unconditional: 63, negative: 30, negative conditional: 14, negative unconditional: 16, unknown: 113, unknown conditional: 80, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 105, Positive conditional cache size: 74, Positive unconditional cache size: 31, Negative cache size: 8, Negative conditional cache size: 6, Negative unconditional cache size: 2, Eliminated conditions: 37, Maximal queried relation: 5, Independence queries for same thread: 158 - 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: 95]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 105 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 163 for 32095ms.. - 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 PartialOrderCegarLoop was analyzing trace of length 105 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 163 for 32095ms.. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 105 with TraceHistMax 12,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 163 for 32095ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 100 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 862.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 318.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 111.4s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 29634 SizeOfPredicates, 30 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 7/202 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