/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 07:37:57,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 07:37:57,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 07:37:57,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 07:37:57,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 07:37:57,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 07:37:57,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 07:37:57,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 07:37:57,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 07:37:57,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 07:37:57,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 07:37:57,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 07:37:57,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 07:37:57,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 07:37:57,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 07:37:57,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 07:37:57,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 07:37:57,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 07:37:57,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 07:37:57,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 07:37:57,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 07:37:57,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 07:37:57,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 07:37:57,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 07:37:57,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 07:37:57,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 07:37:57,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 07:37:57,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 07:37:57,110 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-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf [2021-11-14 07:37:57,132 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 07:37:57,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 07:37:57,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 07:37:57,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 07:37:57,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 07:37:57,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 07:37:57,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 07:37:57,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 07:37:57,135 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 07:37:57,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 07:37:57,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 07:37:57,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 07:37:57,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 07:37:57,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 07:37:57,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 07:37:57,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 07:37:57,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 07:37:57,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 07:37:57,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 07:37:57,138 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 07:37:57,138 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 07:37:57,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 07:37:57,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 07:37:57,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 07:37:57,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 07:37:57,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 07:37:57,359 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 07:37:57,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2021-11-14 07:37:57,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb4368bd/9cec4f8748014dd9b3993c002727b7fb/FLAGbba76cee7 [2021-11-14 07:37:57,738 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 07:37:57,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2021-11-14 07:37:57,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb4368bd/9cec4f8748014dd9b3993c002727b7fb/FLAGbba76cee7 [2021-11-14 07:37:57,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bb4368bd/9cec4f8748014dd9b3993c002727b7fb [2021-11-14 07:37:57,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 07:37:57,766 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 07:37:57,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 07:37:57,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 07:37:57,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 07:37:57,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:37:57" (1/1) ... [2021-11-14 07:37:57,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a12455c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:57, skipping insertion in model container [2021-11-14 07:37:57,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:37:57" (1/1) ... [2021-11-14 07:37:57,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 07:37:57,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 07:37:58,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i[30213,30226] [2021-11-14 07:37:58,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 07:37:58,046 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 07:37:58,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i[30213,30226] [2021-11-14 07:37:58,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 07:37:58,130 INFO L208 MainTranslator]: Completed translation [2021-11-14 07:37:58,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58 WrapperNode [2021-11-14 07:37:58,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 07:37:58,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 07:37:58,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 07:37:58,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 07:37:58,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 07:37:58,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 07:37:58,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 07:37:58,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 07:37:58,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 07:37:58,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 07:37:58,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 07:37:58,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 07:37:58,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (1/1) ... [2021-11-14 07:37:58,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 07:37:58,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:37:58,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-14 07:37:58,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-14 07:37:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-14 07:37:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-14 07:37:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 07:37:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 07:37:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 07:37:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 07:37:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 07:37:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 07:37:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 07:37:58,281 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 07:37:58,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 07:37:58,496 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-14 07:37:58,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:37:58 BoogieIcfgContainer [2021-11-14 07:37:58,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 07:37:58,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 07:37:58,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 07:37:58,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 07:37:58,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 07:37:57" (1/3) ... [2021-11-14 07:37:58,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e09296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:37:58, skipping insertion in model container [2021-11-14 07:37:58,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:37:58" (2/3) ... [2021-11-14 07:37:58,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e09296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:37:58, skipping insertion in model container [2021-11-14 07:37:58,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:37:58" (3/3) ... [2021-11-14 07:37:58,509 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2021-11-14 07:37:58,513 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 07:37:58,513 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 07:37:58,513 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 07:37:58,513 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 07:37:58,536 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,537 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,538 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,539 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,540 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,542 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,542 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,543 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,543 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,543 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,543 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,543 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:58,544 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:37:58,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:37:58,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:37:58,577 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) [2021-11-14 07:37:58,578 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 [2021-11-14 07:37:58,601 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-14 07:37:58,605 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 [2021-11-14 07:37:58,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:37:58,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:37:58,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:37:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1080729769, now seen corresponding path program 1 times [2021-11-14 07:37:58,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:37:58,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63991330] [2021-11-14 07:37:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:37:58,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:37:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:37:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:37:58,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:37:58,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63991330] [2021-11-14 07:37:58,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63991330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:37:58,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:37:58,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:37:58,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907882980] [2021-11-14 07:37:58,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:37:58,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:37:58,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:37:58,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:37:58,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:37:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:58,942 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:37:58,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:37:58,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:58,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 07:37:58,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:37:58,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:37:58,999 INFO L85 PathProgramCache]: Analyzing trace with hash -944815588, now seen corresponding path program 1 times [2021-11-14 07:37:58,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:37:58,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926143383] [2021-11-14 07:37:58,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:37:58,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:37:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:37:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:37:59,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:37:59,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926143383] [2021-11-14 07:37:59,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926143383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:37:59,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:37:59,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:37:59,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177976857] [2021-11-14 07:37:59,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:37:59,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:37:59,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:37:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:37:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:37:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,143 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:37:59,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:37:59,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:59,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:59,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:37:59,197 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:37:59,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 07:37:59,203 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-14 07:37:59,204 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-11-14 07:37:59,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:37:59,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:37:59,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:37:59,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-11-14 07:37:59,506 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 07:37:59,507 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 [2021-11-14 07:37:59,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:37:59,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:37:59,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:37:59,520 INFO L85 PathProgramCache]: Analyzing trace with hash 842110475, now seen corresponding path program 1 times [2021-11-14 07:37:59,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:37:59,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309601499] [2021-11-14 07:37:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:37:59,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:37:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:37:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:37:59,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:37:59,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309601499] [2021-11-14 07:37:59,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309601499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:37:59,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:37:59,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:37:59,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192466239] [2021-11-14 07:37:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:37:59,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:37:59,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:37:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:37:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:37:59,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,635 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:37:59,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:37:59,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:59,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 07:37:59,673 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:37:59,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:37:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1172110246, now seen corresponding path program 1 times [2021-11-14 07:37:59,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:37:59,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614313790] [2021-11-14 07:37:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:37:59,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:37:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:37:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:37:59,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:37:59,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614313790] [2021-11-14 07:37:59,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614313790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:37:59,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:37:59,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:37:59,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606712512] [2021-11-14 07:37:59,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:37:59,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:37:59,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:37:59,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:37:59,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:37:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,762 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:37:59,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:37:59,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:59,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:37:59,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:37:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:37:59,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-14 07:37:59,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:37:59,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:37:59,851 INFO L85 PathProgramCache]: Analyzing trace with hash 323625263, now seen corresponding path program 1 times [2021-11-14 07:37:59,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:37:59,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919291273] [2021-11-14 07:37:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:37:59,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:37:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:37:59,867 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 07:37:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:37:59,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 07:37:59,905 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 07:37:59,907 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 07:37:59,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-14 07:37:59,913 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-14 07:37:59,913 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-11-14 07:37:59,914 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 07:37:59,914 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-14 07:37:59,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,923 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,924 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,925 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,926 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,927 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,928 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,929 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,934 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,935 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,936 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,938 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,939 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,940 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,941 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:37:59,941 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:37:59,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:37:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:37:59,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:37:59,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-11-14 07:37:59,972 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 07:37:59,972 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 [2021-11-14 07:37:59,973 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:00,028 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:00,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:00,029 INFO L85 PathProgramCache]: Analyzing trace with hash 682895421, now seen corresponding path program 1 times [2021-11-14 07:38:00,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:00,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552371492] [2021-11-14 07:38:00,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:00,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:00,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:00,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552371492] [2021-11-14 07:38:00,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552371492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:00,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652045151] [2021-11-14 07:38:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:00,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:00,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:00,123 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) [2021-11-14 07:38:00,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-14 07:38:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:00,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-14 07:38:00,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:00,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:00,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652045151] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:00,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:00,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2021-11-14 07:38:00,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238890144] [2021-11-14 07:38:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:00,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:00,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:00,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:00,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-14 07:38:00,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:00,670 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:00,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:00,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:00,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:00,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:01,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:01,026 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1261236129, now seen corresponding path program 1 times [2021-11-14 07:38:01,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:01,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500262583] [2021-11-14 07:38:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:01,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:01,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:01,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500262583] [2021-11-14 07:38:01,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500262583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:01,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373026540] [2021-11-14 07:38:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:01,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:01,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:01,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:01,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 07:38:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:01,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-14 07:38:01,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:01,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 07:38:01,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373026540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:01,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 07:38:01,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 10 [2021-11-14 07:38:01,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787029834] [2021-11-14 07:38:01,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:01,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:01,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:01,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-14 07:38:01,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:01,267 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:01,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:01,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:01,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:01,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:01,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:01,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash 965498353, now seen corresponding path program 1 times [2021-11-14 07:38:01,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:01,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301917585] [2021-11-14 07:38:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:01,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:01,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:01,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301917585] [2021-11-14 07:38:01,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301917585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:01,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994676274] [2021-11-14 07:38:01,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:01,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:01,589 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:01,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 07:38:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:01,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-14 07:38:01,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:01,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-14 07:38:02,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994676274] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:02,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:02,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 10] total 15 [2021-11-14 07:38:02,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783486987] [2021-11-14 07:38:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:02,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 07:38:02,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:02,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 07:38:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-14 07:38:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:02,058 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:02,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:02,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:02,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:02,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:02,383 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:02,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:02,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1036136875, now seen corresponding path program 1 times [2021-11-14 07:38:02,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:02,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492138914] [2021-11-14 07:38:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:02,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-14 07:38:02,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:02,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492138914] [2021-11-14 07:38:02,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492138914] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:02,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908156734] [2021-11-14 07:38:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:02,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:02,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:02,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:02,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-14 07:38:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:02,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 07:38:02,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-14 07:38:02,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-14 07:38:02,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908156734] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:02,757 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:02,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-14 07:38:02,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372966103] [2021-11-14 07:38:02,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:02,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 07:38:02,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:02,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 07:38:02,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-14 07:38:02,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:02,758 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:02,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:02,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:02,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 07:38:02,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:03,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:03,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1070590554, now seen corresponding path program 1 times [2021-11-14 07:38:03,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:03,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052832866] [2021-11-14 07:38:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:03,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:03,015 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 07:38:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:03,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 07:38:03,025 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 07:38:03,025 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 07:38:03,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-14 07:38:03,026 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-14 07:38:03,026 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2021-11-14 07:38:03,027 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 07:38:03,027 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-11-14 07:38:03,031 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,031 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,031 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,032 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,033 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,036 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,061 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,062 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,063 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,064 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,065 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:03,066 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:38:03,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:03,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:03,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2021-11-14 07:38:03,070 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of3ForFork0 ======== [2021-11-14 07:38:03,071 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 [2021-11-14 07:38:03,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:03,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:03,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:03,148 INFO L85 PathProgramCache]: Analyzing trace with hash 832848276, now seen corresponding path program 1 times [2021-11-14 07:38:03,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:03,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466162430] [2021-11-14 07:38:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:03,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:03,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:03,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466162430] [2021-11-14 07:38:03,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466162430] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:03,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602355575] [2021-11-14 07:38:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:03,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:03,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:03,204 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:03,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-14 07:38:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:03,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:38:03,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:03,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:03,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602355575] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:03,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:03,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:38:03,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728249161] [2021-11-14 07:38:03,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:03,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:38:03,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:03,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:38:03,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:38:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:03,796 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:03,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.6) internal successors, (152), 20 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:03,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-14 07:38:04,992 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:38:05,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-14 07:38:05,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:05,211 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-14 07:38:05,211 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork0 was SAFE (1/4) [2021-11-14 07:38:05,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:05,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:05,213 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:05,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process [2021-11-14 07:38:05,216 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 07:38:05,216 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 [2021-11-14 07:38:05,216 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:05,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:05,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:05,262 INFO L85 PathProgramCache]: Analyzing trace with hash -456513553, now seen corresponding path program 1 times [2021-11-14 07:38:05,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:05,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576635142] [2021-11-14 07:38:05,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:05,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:05,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:05,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576635142] [2021-11-14 07:38:05,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576635142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:05,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112837335] [2021-11-14 07:38:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:05,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:05,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:05,339 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:05,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-14 07:38:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:05,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-14 07:38:05,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:05,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:05,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112837335] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:05,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:05,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2021-11-14 07:38:05,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042476891] [2021-11-14 07:38:05,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:05,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:05,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:05,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:05,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-14 07:38:05,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:05,735 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:05,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:05,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:05,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:06,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-14 07:38:06,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:06,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1537584559, now seen corresponding path program 2 times [2021-11-14 07:38:06,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:06,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648814526] [2021-11-14 07:38:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:06,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:06,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:06,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648814526] [2021-11-14 07:38:06,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648814526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:06,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785787922] [2021-11-14 07:38:06,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 07:38:06,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:06,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:06,132 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:06,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-14 07:38:06,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 07:38:06,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 07:38:06,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:38:06,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:06,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:06,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785787922] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:06,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:06,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 10] total 21 [2021-11-14 07:38:06,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273634142] [2021-11-14 07:38:06,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:06,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-14 07:38:06,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-14 07:38:06,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2021-11-14 07:38:06,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:06,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:06,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.0476190476190474) internal successors, (148), 21 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:06,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:06,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:07,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-14 07:38:07,023 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:07,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:07,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1005712143, now seen corresponding path program 1 times [2021-11-14 07:38:07,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:07,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231418462] [2021-11-14 07:38:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:07,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:07,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:07,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231418462] [2021-11-14 07:38:07,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231418462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:07,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:07,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:07,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844832176] [2021-11-14 07:38:07,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:07,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:07,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:07,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:07,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:07,084 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:07,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:07,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:07,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:07,084 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 07:38:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:07,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-14 07:38:07,128 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:07,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1518543695, now seen corresponding path program 1 times [2021-11-14 07:38:07,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:07,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248227105] [2021-11-14 07:38:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:07,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:07,222 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:07,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:07,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248227105] [2021-11-14 07:38:07,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248227105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:07,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:07,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:07,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060112830] [2021-11-14 07:38:07,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:07,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:07,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:07,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:07,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:07,224 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:07,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:07,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:07,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-14 07:38:07,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:07,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-14 07:38:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:07,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-14 07:38:07,257 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2073069101, now seen corresponding path program 1 times [2021-11-14 07:38:07,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:07,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748992748] [2021-11-14 07:38:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:07,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:07,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 07:38:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:07,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 07:38:07,277 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 07:38:07,277 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 07:38:07,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-14 07:38:07,278 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-14 07:38:07,278 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2021-11-14 07:38:07,278 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 07:38:07,278 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-11-14 07:38:07,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,292 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:07,292 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:38:07,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:07,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:07,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:07,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-14 07:38:07,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread3of4ForFork0 ======== [2021-11-14 07:38:07,297 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 [2021-11-14 07:38:07,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:07,361 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:07,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1089233918, now seen corresponding path program 1 times [2021-11-14 07:38:07,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:07,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081010450] [2021-11-14 07:38:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:07,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:07,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:07,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081010450] [2021-11-14 07:38:07,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081010450] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:07,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851798661] [2021-11-14 07:38:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:07,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:07,407 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:07,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-14 07:38:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:07,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:38:07,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:07,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:07,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851798661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:07,968 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:07,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:38:07,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180809423] [2021-11-14 07:38:07,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:07,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:38:07,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:07,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:38:07,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:38:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:07,969 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:07,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.6) internal successors, (152), 20 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:07,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:14,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:38:14,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:14,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:14,697 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-14 07:38:14,697 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork0 was SAFE (1/5) [2021-11-14 07:38:14,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:14,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:14,699 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:14,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process [2021-11-14 07:38:14,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread4of4ForFork0 ======== [2021-11-14 07:38:14,706 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 [2021-11-14 07:38:14,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:14,775 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:14,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 365602962, now seen corresponding path program 1 times [2021-11-14 07:38:14,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:14,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637413830] [2021-11-14 07:38:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:14,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:14,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:14,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637413830] [2021-11-14 07:38:14,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637413830] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:14,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740541310] [2021-11-14 07:38:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:14,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:14,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:14,904 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:14,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-14 07:38:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:14,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:38:14,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:15,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:15,512 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 29 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:15,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740541310] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:15,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:15,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:38:15,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521906456] [2021-11-14 07:38:15,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:15,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:38:15,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:38:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:38:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:15,514 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:15,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.05) internal successors, (161), 20 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:15,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:19,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-14 07:38:19,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-14 07:38:19,615 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1166965571, now seen corresponding path program 1 times [2021-11-14 07:38:19,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:19,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333063918] [2021-11-14 07:38:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:19,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-14 07:38:19,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:19,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333063918] [2021-11-14 07:38:19,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333063918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:19,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:19,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:19,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744053368] [2021-11-14 07:38:19,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:19,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:19,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:19,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:19,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:19,696 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:19,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:19,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:19,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:19,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-14 07:38:19,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1607148060, now seen corresponding path program 1 times [2021-11-14 07:38:19,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:19,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52000127] [2021-11-14 07:38:19,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:19,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-14 07:38:19,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:19,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52000127] [2021-11-14 07:38:19,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52000127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:19,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:19,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:19,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273838633] [2021-11-14 07:38:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:19,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:19,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:19,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:19,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:19,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:19,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-14 07:38:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:22,237 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:38:22,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-14 07:38:22,238 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-14 07:38:22,239 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork0 was SAFE (2/5) [2021-11-14 07:38:22,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:22,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:22,241 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:22,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (18)] Waiting until timeout for monitored process [2021-11-14 07:38:22,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of4ForFork0 ======== [2021-11-14 07:38:22,244 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 [2021-11-14 07:38:22,244 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:22,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash 894277633, now seen corresponding path program 1 times [2021-11-14 07:38:22,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:22,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005072698] [2021-11-14 07:38:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:22,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:22,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:22,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005072698] [2021-11-14 07:38:22,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005072698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:22,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:22,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:22,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211956325] [2021-11-14 07:38:22,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:22,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:22,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:22,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,343 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:22,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:22,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:22,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-14 07:38:22,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:22,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash -256042260, now seen corresponding path program 1 times [2021-11-14 07:38:22,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:22,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685092236] [2021-11-14 07:38:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:22,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:22,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:22,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685092236] [2021-11-14 07:38:22,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685092236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:22,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:22,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:22,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825468426] [2021-11-14 07:38:22,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:22,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:22,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:22,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,398 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:22,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:22,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:22,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:22,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-14 07:38:22,476 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1840511835, now seen corresponding path program 1 times [2021-11-14 07:38:22,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:22,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207248193] [2021-11-14 07:38:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:22,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:22,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:22,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207248193] [2021-11-14 07:38:22,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207248193] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:22,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185101555] [2021-11-14 07:38:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:22,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:22,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:22,511 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:22,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-14 07:38:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:22,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 07:38:22,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:22,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:22,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185101555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:22,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:22,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-14 07:38:22,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470142713] [2021-11-14 07:38:22,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:22,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 07:38:22,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:22,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 07:38:22,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-14 07:38:22,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:22,799 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:22,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:22,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:22,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:22,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:25,926 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:38:25,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:26,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:26,128 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-14 07:38:26,128 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork0 was SAFE (3/5) [2021-11-14 07:38:26,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:26,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:26,129 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:26,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (20)] Waiting until timeout for monitored process [2021-11-14 07:38:26,132 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of4ForFork0 ======== [2021-11-14 07:38:26,133 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 [2021-11-14 07:38:26,133 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:26,179 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash 703413937, now seen corresponding path program 1 times [2021-11-14 07:38:26,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:26,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692389069] [2021-11-14 07:38:26,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:26,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:26,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:26,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692389069] [2021-11-14 07:38:26,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692389069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:26,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150278928] [2021-11-14 07:38:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:26,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:26,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:26,362 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:26,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-14 07:38:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:26,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-14 07:38:26,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:26,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 07:38:26,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150278928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:26,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 07:38:26,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 10 [2021-11-14 07:38:26,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528794458] [2021-11-14 07:38:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:26,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:26,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-14 07:38:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:26,541 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:26,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:26,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:26,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:26,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:26,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-14 07:38:26,797 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:26,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:26,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1714432102, now seen corresponding path program 1 times [2021-11-14 07:38:26,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:26,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532298602] [2021-11-14 07:38:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:26,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:26,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:26,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532298602] [2021-11-14 07:38:26,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532298602] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:26,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735894413] [2021-11-14 07:38:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:26,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:26,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:26,828 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:26,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-14 07:38:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:26,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-14 07:38:26,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:27,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:27,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735894413] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:27,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:27,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 10] total 15 [2021-11-14 07:38:27,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875119366] [2021-11-14 07:38:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:27,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 07:38:27,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:27,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 07:38:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-14 07:38:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:27,141 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:27,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:27,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:27,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:27,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:27,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-14 07:38:27,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-14 07:38:27,389 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:27,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1221291631, now seen corresponding path program 2 times [2021-11-14 07:38:27,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:27,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45738063] [2021-11-14 07:38:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:27,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:27,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:27,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45738063] [2021-11-14 07:38:27,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45738063] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:27,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961562434] [2021-11-14 07:38:27,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 07:38:27,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:27,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:27,431 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:27,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-14 07:38:27,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 07:38:27,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 07:38:27,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 07:38:27,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:27,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:27,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:27,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961562434] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:27,727 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:27,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-14 07:38:27,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492127610] [2021-11-14 07:38:27,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:27,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 07:38:27,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 07:38:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-14 07:38:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:27,728 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:27,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:27,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:27,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:27,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:29,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:29,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:29,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-14 07:38:29,629 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2021559046, now seen corresponding path program 1 times [2021-11-14 07:38:29,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:29,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264801274] [2021-11-14 07:38:29,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:29,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 07:38:29,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:29,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264801274] [2021-11-14 07:38:29,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264801274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:29,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:29,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:29,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820605746] [2021-11-14 07:38:29,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:29,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:29,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:29,684 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:29,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:29,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:29,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:29,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-14 07:38:29,708 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:29,709 INFO L85 PathProgramCache]: Analyzing trace with hash -232970847, now seen corresponding path program 1 times [2021-11-14 07:38:29,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:29,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249601004] [2021-11-14 07:38:29,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:29,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 07:38:29,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:29,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249601004] [2021-11-14 07:38:29,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249601004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:29,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:29,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:29,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851267527] [2021-11-14 07:38:29,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:29,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:29,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:29,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:29,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:29,764 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:29,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:29,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:33,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:38:33,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-14 07:38:33,928 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-14 07:38:33,928 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork0 was SAFE (4/5) [2021-11-14 07:38:33,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:33,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:33,930 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:33,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2021-11-14 07:38:33,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 07:38:33,933 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 [2021-11-14 07:38:33,933 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:33,975 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:33,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:33,975 INFO L85 PathProgramCache]: Analyzing trace with hash -198612424, now seen corresponding path program 1 times [2021-11-14 07:38:33,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:33,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536439597] [2021-11-14 07:38:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:33,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:34,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:34,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536439597] [2021-11-14 07:38:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536439597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:34,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840722502] [2021-11-14 07:38:34,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:34,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:34,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:34,012 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:34,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-14 07:38:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:34,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-14 07:38:34,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:34,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:34,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840722502] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:34,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:34,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2021-11-14 07:38:34,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084697706] [2021-11-14 07:38:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:34,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:34,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:34,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:34,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-14 07:38:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:34,427 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:34,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 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) [2021-11-14 07:38:34,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:34,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:34,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:34,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-14 07:38:34,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:34,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1910976313, now seen corresponding path program 1 times [2021-11-14 07:38:34,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:34,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20438660] [2021-11-14 07:38:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:34,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:38:34,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:34,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20438660] [2021-11-14 07:38:34,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20438660] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:34,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097381124] [2021-11-14 07:38:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:34,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:34,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:34,863 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:34,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-14 07:38:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:34,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:38:34,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:35,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:35,404 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 48 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-14 07:38:35,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097381124] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:35,405 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:35,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:38:35,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470790277] [2021-11-14 07:38:35,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:35,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:38:35,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:35,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:38:35,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:38:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,406 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:35,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.9) internal successors, (158), 20 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:35,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 07:38:35,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:35,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:35,733 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:35,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:35,733 INFO L85 PathProgramCache]: Analyzing trace with hash 465655897, now seen corresponding path program 1 times [2021-11-14 07:38:35,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:35,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305776613] [2021-11-14 07:38:35,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:35,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:38:35,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:35,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305776613] [2021-11-14 07:38:35,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305776613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:35,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:35,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:35,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756777057] [2021-11-14 07:38:35,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:35,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:35,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:35,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:35,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,781 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:35,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:35,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 07:38:35,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:38:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:35,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-14 07:38:35,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:35,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:35,850 INFO L85 PathProgramCache]: Analyzing trace with hash 192837636, now seen corresponding path program 1 times [2021-11-14 07:38:35,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:35,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728569929] [2021-11-14 07:38:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:35,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:38:35,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:35,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728569929] [2021-11-14 07:38:35,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728569929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:35,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:35,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:35,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679953861] [2021-11-14 07:38:35,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:35,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:35,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:35,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:35,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,909 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:35,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:35,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:38:35,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:35,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:38:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:38:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:38:35,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-14 07:38:35,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:38:35,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:35,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1550358901, now seen corresponding path program 1 times [2021-11-14 07:38:35,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:35,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829355995] [2021-11-14 07:38:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:35,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:35,946 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 07:38:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:38:35,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 07:38:35,970 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 07:38:35,970 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 07:38:35,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-14 07:38:35,971 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-14 07:38:35,971 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (5/5) [2021-11-14 07:38:35,971 WARN L234 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 07:38:35,971 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-11-14 07:38:35,979 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,980 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:38:35,991 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:38:35,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:38:35,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:35,993 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:38:35,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (27)] Waiting until timeout for monitored process [2021-11-14 07:38:35,995 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread2of5ForFork0 ======== [2021-11-14 07:38:35,996 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 [2021-11-14 07:38:35,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:38:36,054 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:36,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:36,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1570717095, now seen corresponding path program 1 times [2021-11-14 07:38:36,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:36,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817818598] [2021-11-14 07:38:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:36,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:36,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:36,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817818598] [2021-11-14 07:38:36,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817818598] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:36,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835742753] [2021-11-14 07:38:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:36,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:36,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:36,084 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:36,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-14 07:38:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:36,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-14 07:38:36,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:36,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-14 07:38:36,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835742753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:36,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-14 07:38:36,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 10 [2021-11-14 07:38:36,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581668488] [2021-11-14 07:38:36,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:36,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:38:36,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:36,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:38:36,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-14 07:38:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:36,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:36,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:36,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:36,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:36,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:36,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1984663568, now seen corresponding path program 1 times [2021-11-14 07:38:36,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:36,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920089481] [2021-11-14 07:38:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:36,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:36,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:36,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920089481] [2021-11-14 07:38:36,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920089481] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:36,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426455969] [2021-11-14 07:38:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:36,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:36,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:36,518 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:36,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-14 07:38:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:36,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-14 07:38:36,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:36,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:38:36,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:36,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426455969] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:36,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:38:36,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 10] total 15 [2021-11-14 07:38:36,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773038895] [2021-11-14 07:38:36,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:36,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 07:38:36,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:36,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 07:38:36,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-14 07:38:36,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:36,849 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:36,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:36,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:36,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:36,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:37,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:37,115 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:37,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1181662727, now seen corresponding path program 2 times [2021-11-14 07:38:37,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:37,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299852484] [2021-11-14 07:38:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:37,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:37,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:37,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299852484] [2021-11-14 07:38:37,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299852484] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:38:37,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651587859] [2021-11-14 07:38:37,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 07:38:37,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:37,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:38:37,147 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:38:37,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-14 07:38:37,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 07:38:37,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 07:38:37,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 07:38:37,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:38:37,482 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:37,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:38:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:38:37,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651587859] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:38:37,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:38:37,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-14 07:38:37,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413092032] [2021-11-14 07:38:37,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:38:37,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 07:38:37,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 07:38:37,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-14 07:38:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:37,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:37,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:37,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:37,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:37,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:51,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-14 07:38:52,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:38:52,065 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:52,065 INFO L85 PathProgramCache]: Analyzing trace with hash -961539486, now seen corresponding path program 1 times [2021-11-14 07:38:52,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:52,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59066867] [2021-11-14 07:38:52,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:52,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 07:38:52,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:52,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59066867] [2021-11-14 07:38:52,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59066867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:52,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:52,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:38:52,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569727896] [2021-11-14 07:38:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:52,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:38:52,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:38:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:38:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:52,120 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:52,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:52,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:52,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:52,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:52,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:52,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-14 07:38:52,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:38:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:38:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2084724809, now seen corresponding path program 1 times [2021-11-14 07:38:52,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:38:52,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137646895] [2021-11-14 07:38:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:38:52,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:38:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:38:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-14 07:38:52,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:38:52,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137646895] [2021-11-14 07:38:52,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137646895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:38:52,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:38:52,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:38:52,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709548733] [2021-11-14 07:38:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:38:52,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:38:52,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:38:52,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:38:52,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:38:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:38:52,202 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:38:52,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:38:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:38:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:38:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:38:52,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 07:39:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:39:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:39:48,763 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:39:48,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-14 07:39:48,764 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-14 07:39:48,764 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread2of5ForFork0 was SAFE (1/6) [2021-11-14 07:39:48,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:39:48,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:39:48,765 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:39:48,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (31)] Waiting until timeout for monitored process [2021-11-14 07:39:48,772 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of5ForFork0 ======== [2021-11-14 07:39:48,772 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 [2021-11-14 07:39:48,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:39:48,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:39:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:39:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash 310982927, now seen corresponding path program 1 times [2021-11-14 07:39:48,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:39:48,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321657522] [2021-11-14 07:39:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:39:48,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:39:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:39:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:39:48,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:39:48,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321657522] [2021-11-14 07:39:48,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321657522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:39:48,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:39:48,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:39:48,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342700981] [2021-11-14 07:39:48,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:39:48,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:39:48,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:39:48,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:39:48,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:39:48,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:48,846 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:39:48,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:39:48,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:48,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:48,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-14 07:39:48,875 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:39:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:39:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 249140280, now seen corresponding path program 1 times [2021-11-14 07:39:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:39:48,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877154905] [2021-11-14 07:39:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:39:48,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:39:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:39:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 07:39:48,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:39:48,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877154905] [2021-11-14 07:39:48,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877154905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:39:48,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:39:48,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:39:48,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859853537] [2021-11-14 07:39:48,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:39:48,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:39:48,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:39:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:39:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:39:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:48,916 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:39:48,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:39:48,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:48,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:39:48,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-14 07:39:48,980 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:39:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:39:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1562138821, now seen corresponding path program 1 times [2021-11-14 07:39:48,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:39:48,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518772841] [2021-11-14 07:39:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:39:48,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:39:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:39:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:39:49,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:39:49,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518772841] [2021-11-14 07:39:49,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518772841] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:39:49,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288108631] [2021-11-14 07:39:49,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:39:49,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:39:49,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:39:49,010 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:39:49,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-14 07:39:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:39:49,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-14 07:39:49,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:39:49,170 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:39:49,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:39:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 07:39:49,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288108631] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:39:49,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:39:49,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-11-14 07:39:49,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268862806] [2021-11-14 07:39:49,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:39:49,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-14 07:39:49,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:39:49,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-14 07:39:49,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-11-14 07:39:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:39:49,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:39:49,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:39:49,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:39:49,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:39:49,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:40:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:40:23,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 07:40:23,720 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-14 07:40:23,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-11-14 07:40:23,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:40:23,937 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-14 07:40:23,937 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of5ForFork0 was SAFE (2/6) [2021-11-14 07:40:23,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:40:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:40:23,938 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:40:23,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (33)] Waiting until timeout for monitored process [2021-11-14 07:40:23,944 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 07:40:23,945 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 [2021-11-14 07:40:23,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:40:24,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:40:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:24,008 INFO L85 PathProgramCache]: Analyzing trace with hash -862561841, now seen corresponding path program 1 times [2021-11-14 07:40:24,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:24,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110379772] [2021-11-14 07:40:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:24,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 48 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:40:24,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:40:24,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110379772] [2021-11-14 07:40:24,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110379772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:40:24,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773951709] [2021-11-14 07:40:24,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:24,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:40:24,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:40:24,064 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:40:24,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-14 07:40:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:24,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-14 07:40:24,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:40:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 48 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:40:24,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:40:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:40:24,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773951709] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-14 07:40:24,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-14 07:40:24,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 8] total 16 [2021-11-14 07:40:24,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076111614] [2021-11-14 07:40:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:40:24,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-14 07:40:24,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:40:24,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-14 07:40:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-14 07:40:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:24,565 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:40:24,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:40:24,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:24,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-14 07:40:24,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-11-14 07:40:24,940 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:40:24,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:24,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1402296017, now seen corresponding path program 1 times [2021-11-14 07:40:24,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:24,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261252353] [2021-11-14 07:40:24,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:24,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 48 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:40:24,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:40:24,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261252353] [2021-11-14 07:40:24,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261252353] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:40:24,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832758767] [2021-11-14 07:40:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:24,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:40:24,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:40:24,973 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:40:24,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-14 07:40:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:25,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:40:25,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:40:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:40:25,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:40:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:40:25,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832758767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:40:25,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:40:25,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:40:25,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603564048] [2021-11-14 07:40:25,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:40:25,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:40:25,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:40:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:40:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:40:25,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:25,545 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:40:25,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.25) internal successors, (165), 20 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:40:25,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:25,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-14 07:40:25,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-14 07:40:25,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:40:25,884 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:40:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash 271468239, now seen corresponding path program 1 times [2021-11-14 07:40:25,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:25,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251013665] [2021-11-14 07:40:25,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:25,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-14 07:40:25,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:40:25,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251013665] [2021-11-14 07:40:25,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251013665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:40:25,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:40:25,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 07:40:25,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969280222] [2021-11-14 07:40:25,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:40:25,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 07:40:25,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:40:25,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 07:40:25,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-14 07:40:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:25,955 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:40:25,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:40:25,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:25,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-11-14 07:40:25,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:40:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:40:26,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-14 07:40:26,021 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:40:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1908710918, now seen corresponding path program 1 times [2021-11-14 07:40:26,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:26,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094674936] [2021-11-14 07:40:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:26,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-11-14 07:40:26,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:40:26,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094674936] [2021-11-14 07:40:26,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094674936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 07:40:26,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 07:40:26,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-14 07:40:26,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263034991] [2021-11-14 07:40:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 07:40:26,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-14 07:40:26,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:40:26,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-14 07:40:26,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-14 07:40:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:26,058 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:40:26,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:40:26,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:26,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:40:26,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:40:26,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-14 07:40:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-14 07:40:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 07:40:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-14 07:40:26,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-14 07:40:26,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-14 07:40:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -917775501, now seen corresponding path program 1 times [2021-11-14 07:40:26,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:26,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370568400] [2021-11-14 07:40:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:26,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:40:26,098 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-14 07:40:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-14 07:40:26,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-14 07:40:26,113 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-14 07:40:26,113 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2021-11-14 07:40:26,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-14 07:40:26,114 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-14 07:40:26,114 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (3/6) [2021-11-14 07:40:26,114 WARN L234 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-14 07:40:26,114 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,124 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_~l~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 07:40:26,135 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-14 07:40:26,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 07:40:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:40:26,136 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 07:40:26,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (36)] Waiting until timeout for monitored process [2021-11-14 07:40:26,139 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread6of6ForFork0 ======== [2021-11-14 07:40:26,139 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 [2021-11-14 07:40:26,139 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-14 07:40:26,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-14 07:40:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 07:40:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash 48930098, now seen corresponding path program 1 times [2021-11-14 07:40:26,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 07:40:26,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101962810] [2021-11-14 07:40:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:26,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 07:40:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 48 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-14 07:40:26,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 07:40:26,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101962810] [2021-11-14 07:40:26,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101962810] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 07:40:26,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831158827] [2021-11-14 07:40:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 07:40:26,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 07:40:26,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 07:40:26,273 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-14 07:40:26,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-14 07:40:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 07:40:26,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 07:40:26,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 07:40:26,561 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 57 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:40:26,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 07:40:27,193 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-14 07:40:27,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831158827] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 07:40:27,194 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 07:40:27,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 20 [2021-11-14 07:40:27,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195820739] [2021-11-14 07:40:27,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 07:40:27,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-14 07:40:27,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 07:40:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-14 07:40:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-11-14 07:40:27,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 07:40:27,195 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 07:40:27,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.95) internal successors, (179), 20 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 07:40:27,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.