/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 17:53:46,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 17:53:46,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 17:53:46,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 17:53:46,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-12 17:53:46,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-12 17:53:46,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-12 17:53:46,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 17:53:46,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 17:53:46,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 17:53:46,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 17:53:46,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 17:53:47,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 17:53:47,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 17:53:47,000 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 17:53:47,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 17:53:47,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 17:53:47,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 17:53:47,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 17:53:47,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 17:53:47,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 17:53:47,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 17:53:47,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 17:53:47,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 17:53:47,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 17:53:47,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:53:47,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 17:53:47,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 17:53:47,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 17:53:47,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 17:53:47,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 17:53:47,019 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 17:53:47,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 17:53:47,019 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 17:53:47,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 17:53:47,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 17:53:47,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 17:53:47,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-12 17:53:47,298 INFO L275 PluginConnector]: CDTParser initialized [2021-06-12 17:53:47,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2021-06-12 17:53:47,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9990e266/e930ad7dbb14477b873047eda1c15828/FLAGfcf44d0cd [2021-06-12 17:53:47,885 INFO L306 CDTParser]: Found 1 translation units. [2021-06-12 17:53:47,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2021-06-12 17:53:47,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9990e266/e930ad7dbb14477b873047eda1c15828/FLAGfcf44d0cd [2021-06-12 17:53:48,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9990e266/e930ad7dbb14477b873047eda1c15828 [2021-06-12 17:53:48,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 17:53:48,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-12 17:53:48,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-12 17:53:48,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-12 17:53:48,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-12 17:53:48,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:53:48" (1/1) ... [2021-06-12 17:53:48,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec36815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:48, skipping insertion in model container [2021-06-12 17:53:48,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.06 05:53:48" (1/1) ... [2021-06-12 17:53:48,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-12 17:53:48,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-12 17:53:48,895 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2021-06-12 17:53:48,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:53:48,954 INFO L203 MainTranslator]: Completed pre-run [2021-06-12 17:53:49,004 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i[30035,30048] [2021-06-12 17:53:49,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-12 17:53:49,098 INFO L208 MainTranslator]: Completed translation [2021-06-12 17:53:49,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49 WrapperNode [2021-06-12 17:53:49,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-12 17:53:49,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 17:53:49,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 17:53:49,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 17:53:49,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 17:53:49,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 17:53:49,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 17:53:49,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 17:53:49,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... [2021-06-12 17:53:49,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 17:53:49,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 17:53:49,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 17:53:49,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 17:53:49,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 17:53:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-06-12 17:53:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-12 17:53:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-12 17:53:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-06-12 17:53:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-06-12 17:53:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-12 17:53:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-12 17:53:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-12 17:53:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 17:53:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 17:53:49,252 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 17:53:49,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 17:53:49,563 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-06-12 17:53:49,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:53:49 BoogieIcfgContainer [2021-06-12 17:53:49,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 17:53:49,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 17:53:49,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 17:53:49,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 17:53:49,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.06 05:53:48" (1/3) ... [2021-06-12 17:53:49,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e715e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:53:49, skipping insertion in model container [2021-06-12 17:53:49,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.06 05:53:49" (2/3) ... [2021-06-12 17:53:49,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288e715e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 05:53:49, skipping insertion in model container [2021-06-12 17:53:49,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 05:53:49" (3/3) ... [2021-06-12 17:53:49,571 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2021-06-12 17:53:49,576 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 17:53:49,576 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 17:53:49,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 17:53:49,577 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 17:53:49,597 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,598 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,598 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,598 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,599 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,599 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,599 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,599 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,599 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,601 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,602 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,602 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,602 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,602 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:49,613 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-12 17:53:49,633 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 17:53:49,662 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:53:49,662 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:53:49,662 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:53:49,662 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:53:49,663 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:53:49,663 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:53:49,664 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:53:49,664 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:53:49,676 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 79 transitions, 166 flow [2021-06-12 17:53:49,737 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:49,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:49,745 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:49,751 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:49,751 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:49,756 INFO L82 PathProgramCache]: Analyzing trace with hash -837568559, now seen corresponding path program 1 times [2021-06-12 17:53:49,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:49,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751108950] [2021-06-12 17:53:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:49,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:49,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751108950] [2021-06-12 17:53:49,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751108950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:49,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:49,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-12 17:53:49,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645284316] [2021-06-12 17:53:49,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-12 17:53:49,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:49,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-12 17:53:49,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:49,970 INFO L87 Difference]: Start difference. First operand has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:49,994 INFO L93 Difference]: Finished difference Result 276 states and 458 transitions. [2021-06-12 17:53:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-12 17:53:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:50,009 INFO L225 Difference]: With dead ends: 276 [2021-06-12 17:53:50,009 INFO L226 Difference]: Without dead ends: 231 [2021-06-12 17:53:50,010 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:50,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-06-12 17:53:50,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-06-12 17:53:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 230 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 383 transitions. [2021-06-12 17:53:50,066 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 383 transitions. Word has length 36 [2021-06-12 17:53:50,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:50,066 INFO L482 AbstractCegarLoop]: Abstraction has 231 states and 383 transitions. [2021-06-12 17:53:50,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 383 transitions. [2021-06-12 17:53:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:50,068 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:50,068 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:50,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 17:53:50,069 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:50,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:50,071 INFO L82 PathProgramCache]: Analyzing trace with hash -118377934, now seen corresponding path program 1 times [2021-06-12 17:53:50,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:50,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044023311] [2021-06-12 17:53:50,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:50,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:50,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:50,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044023311] [2021-06-12 17:53:50,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044023311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:50,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:50,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:53:50,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845133015] [2021-06-12 17:53:50,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:53:50,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:50,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:53:50,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:53:50,238 INFO L87 Difference]: Start difference. First operand 231 states and 383 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:50,303 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2021-06-12 17:53:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-12 17:53:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:50,304 INFO L225 Difference]: With dead ends: 146 [2021-06-12 17:53:50,305 INFO L226 Difference]: Without dead ends: 146 [2021-06-12 17:53:50,305 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:53:50,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-06-12 17:53:50,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2021-06-12 17:53:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 139 states have (on average 1.5179856115107915) internal successors, (211), 140 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 211 transitions. [2021-06-12 17:53:50,311 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 211 transitions. Word has length 36 [2021-06-12 17:53:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:50,312 INFO L482 AbstractCegarLoop]: Abstraction has 141 states and 211 transitions. [2021-06-12 17:53:50,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 211 transitions. [2021-06-12 17:53:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-06-12 17:53:50,313 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:50,313 INFO L472 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:50,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 17:53:50,314 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:50,314 INFO L82 PathProgramCache]: Analyzing trace with hash -116446752, now seen corresponding path program 1 times [2021-06-12 17:53:50,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:50,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455982027] [2021-06-12 17:53:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:50,353 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:50,396 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:50,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 17:53:50,436 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 17:53:50,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 17:53:50,437 WARN L243 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-12 17:53:50,437 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-12 17:53:50,457 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,457 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,458 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,459 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,460 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,461 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,462 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,462 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,462 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,465 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,465 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,465 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,465 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,465 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:50,470 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-12 17:53:50,470 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 17:53:50,472 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:53:50,472 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:53:50,472 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:53:50,472 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:53:50,472 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:53:50,472 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:53:50,472 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:53:50,472 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:53:50,475 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 86 transitions, 190 flow [2021-06-12 17:53:50,527 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:50,537 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:50,538 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:50,538 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:50,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:50,539 INFO L82 PathProgramCache]: Analyzing trace with hash 107759953, now seen corresponding path program 1 times [2021-06-12 17:53:50,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:50,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890585886] [2021-06-12 17:53:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:50,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:50,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890585886] [2021-06-12 17:53:50,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890585886] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:50,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:50,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-12 17:53:50,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844804186] [2021-06-12 17:53:50,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-12 17:53:50,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:50,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-12 17:53:50,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:50,594 INFO L87 Difference]: Start difference. First operand has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:50,612 INFO L93 Difference]: Finished difference Result 1758 states and 4274 transitions. [2021-06-12 17:53:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-12 17:53:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:50,621 INFO L225 Difference]: With dead ends: 1758 [2021-06-12 17:53:50,621 INFO L226 Difference]: Without dead ends: 1461 [2021-06-12 17:53:50,621 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-06-12 17:53:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-06-12 17:53:50,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1456 states have (on average 2.4429945054945055) internal successors, (3557), 1460 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 3557 transitions. [2021-06-12 17:53:50,684 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 3557 transitions. Word has length 36 [2021-06-12 17:53:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:50,684 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 3557 transitions. [2021-06-12 17:53:50,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 3557 transitions. [2021-06-12 17:53:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:50,688 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:50,688 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:50,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 17:53:50,688 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:50,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:50,689 INFO L82 PathProgramCache]: Analyzing trace with hash 826950578, now seen corresponding path program 1 times [2021-06-12 17:53:50,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:50,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068199376] [2021-06-12 17:53:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:50,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:50,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068199376] [2021-06-12 17:53:50,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068199376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:50,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:50,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:53:50,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051199316] [2021-06-12 17:53:50,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:53:50,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:50,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:53:50,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:53:50,823 INFO L87 Difference]: Start difference. First operand 1461 states and 3557 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:50,912 INFO L93 Difference]: Finished difference Result 1019 states and 2248 transitions. [2021-06-12 17:53:50,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-12 17:53:50,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:50,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:50,918 INFO L225 Difference]: With dead ends: 1019 [2021-06-12 17:53:50,918 INFO L226 Difference]: Without dead ends: 1019 [2021-06-12 17:53:50,919 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 72.0ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:53:50,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-06-12 17:53:50,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 939. [2021-06-12 17:53:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 935 states have (on average 2.259893048128342) internal successors, (2113), 938 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 2113 transitions. [2021-06-12 17:53:50,945 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 2113 transitions. Word has length 36 [2021-06-12 17:53:50,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:50,945 INFO L482 AbstractCegarLoop]: Abstraction has 939 states and 2113 transitions. [2021-06-12 17:53:50,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 2113 transitions. [2021-06-12 17:53:50,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-12 17:53:50,948 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:50,948 INFO L472 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:50,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 17:53:50,948 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:50,950 INFO L82 PathProgramCache]: Analyzing trace with hash -519909148, now seen corresponding path program 1 times [2021-06-12 17:53:50,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:50,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972509143] [2021-06-12 17:53:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:50,985 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:51,003 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:51,012 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 17:53:51,012 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 17:53:51,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 17:53:51,013 WARN L243 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-12 17:53:51,013 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-12 17:53:51,021 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,022 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,023 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,024 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,025 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,026 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,027 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,027 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,027 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,027 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,027 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,028 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,028 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,028 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,030 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,030 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,030 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,030 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,030 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,031 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,032 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,032 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,032 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,032 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:51,040 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-12 17:53:51,040 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 17:53:51,041 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:53:51,041 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:53:51,041 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:53:51,041 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:53:51,041 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:53:51,041 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:53:51,041 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:53:51,042 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:53:51,043 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 93 transitions, 216 flow [2021-06-12 17:53:51,514 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:51,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:51,544 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:51,544 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:51,545 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:51,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:51,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1470062994, now seen corresponding path program 1 times [2021-06-12 17:53:51,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:51,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927334305] [2021-06-12 17:53:51,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:51,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:51,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927334305] [2021-06-12 17:53:51,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927334305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:51,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:51,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-12 17:53:51,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098444476] [2021-06-12 17:53:51,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-12 17:53:51,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:51,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-12 17:53:51,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:51,604 INFO L87 Difference]: Start difference. First operand has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:51,710 INFO L93 Difference]: Finished difference Result 11826 states and 37631 transitions. [2021-06-12 17:53:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-12 17:53:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:51,775 INFO L225 Difference]: With dead ends: 11826 [2021-06-12 17:53:51,775 INFO L226 Difference]: Without dead ends: 9765 [2021-06-12 17:53:51,776 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:53:51,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-06-12 17:53:52,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 9765. [2021-06-12 17:53:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9765 states, 9756 states have (on average 3.193931939319393) internal successors, (31160), 9764 states have internal predecessors, (31160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:52,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9765 states to 9765 states and 31160 transitions. [2021-06-12 17:53:52,223 INFO L78 Accepts]: Start accepts. Automaton has 9765 states and 31160 transitions. Word has length 36 [2021-06-12 17:53:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:52,223 INFO L482 AbstractCegarLoop]: Abstraction has 9765 states and 31160 transitions. [2021-06-12 17:53:52,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 9765 states and 31160 transitions. [2021-06-12 17:53:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:53:52,224 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:52,224 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:52,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 17:53:52,225 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:52,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:52,225 INFO L82 PathProgramCache]: Analyzing trace with hash -298259214, now seen corresponding path program 1 times [2021-06-12 17:53:52,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:52,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025528470] [2021-06-12 17:53:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:53:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:53:52,335 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:53:52,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025528470] [2021-06-12 17:53:52,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025528470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:53:52,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:53:52,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:53:52,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681443385] [2021-06-12 17:53:52,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:53:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:53:52,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:53:52,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:53:52,337 INFO L87 Difference]: Start difference. First operand 9765 states and 31160 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:53:52,459 INFO L93 Difference]: Finished difference Result 7451 states and 21895 transitions. [2021-06-12 17:53:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-12 17:53:52,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:53:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:53:52,497 INFO L225 Difference]: With dead ends: 7451 [2021-06-12 17:53:52,497 INFO L226 Difference]: Without dead ends: 7451 [2021-06-12 17:53:52,497 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 43.7ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:53:52,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2021-06-12 17:53:52,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 6693. [2021-06-12 17:53:52,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 6685 states have (on average 2.9964098728496635) internal successors, (20031), 6692 states have internal predecessors, (20031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 20031 transitions. [2021-06-12 17:53:52,724 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 20031 transitions. Word has length 36 [2021-06-12 17:53:52,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:53:52,724 INFO L482 AbstractCegarLoop]: Abstraction has 6693 states and 20031 transitions. [2021-06-12 17:53:52,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:53:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 20031 transitions. [2021-06-12 17:53:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-12 17:53:52,728 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:53:52,729 INFO L472 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:53:52,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 17:53:52,729 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:53:52,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:53:52,729 INFO L82 PathProgramCache]: Analyzing trace with hash -788640589, now seen corresponding path program 1 times [2021-06-12 17:53:52,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:53:52,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030641245] [2021-06-12 17:53:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:53:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:52,754 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:53:52,766 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:53:52,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 17:53:52,775 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 17:53:52,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 17:53:52,775 WARN L243 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-12 17:53:52,775 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-12 17:53:52,783 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,783 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,783 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,783 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,784 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,828 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,829 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,830 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,831 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,832 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,833 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,833 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,833 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,833 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,833 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,836 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,837 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,837 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,837 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,837 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,838 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,838 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,838 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,838 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,838 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,839 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,839 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,839 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,840 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,840 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:53:52,845 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-12 17:53:52,845 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 17:53:52,846 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:53:52,846 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:53:52,846 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:53:52,846 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:53:52,846 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:53:52,846 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:53:52,846 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:53:52,846 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:53:52,849 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 100 transitions, 244 flow [2021-06-12 17:54:02,152 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:54:02,418 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:54:02,418 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:54:02,419 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:54:02,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:54:02,419 INFO L82 PathProgramCache]: Analyzing trace with hash 81769361, now seen corresponding path program 1 times [2021-06-12 17:54:02,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:54:02,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895460002] [2021-06-12 17:54:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:54:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:54:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:54:02,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:54:02,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895460002] [2021-06-12 17:54:02,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895460002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:54:02,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:54:02,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-12 17:54:02,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396373229] [2021-06-12 17:54:02,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-12 17:54:02,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:54:02,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-12 17:54:02,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:54:02,563 INFO L87 Difference]: Start difference. First operand has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:54:03,317 INFO L93 Difference]: Finished difference Result 80466 states and 315392 transitions. [2021-06-12 17:54:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-12 17:54:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:54:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:54:03,853 INFO L225 Difference]: With dead ends: 80466 [2021-06-12 17:54:03,853 INFO L226 Difference]: Without dead ends: 66057 [2021-06-12 17:54:03,853 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 17:54:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66057 states. [2021-06-12 17:54:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66057 to 66057. [2021-06-12 17:54:06,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66057 states, 66040 states have (on average 3.934327680193822) internal successors, (259823), 66056 states have internal predecessors, (259823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66057 states to 66057 states and 259823 transitions. [2021-06-12 17:54:06,650 INFO L78 Accepts]: Start accepts. Automaton has 66057 states and 259823 transitions. Word has length 36 [2021-06-12 17:54:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:54:06,651 INFO L482 AbstractCegarLoop]: Abstraction has 66057 states and 259823 transitions. [2021-06-12 17:54:06,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 66057 states and 259823 transitions. [2021-06-12 17:54:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 17:54:06,651 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:54:06,651 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:54:06,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 17:54:06,652 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:54:06,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:54:06,652 INFO L82 PathProgramCache]: Analyzing trace with hash 800959986, now seen corresponding path program 1 times [2021-06-12 17:54:06,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:54:06,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288888214] [2021-06-12 17:54:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:54:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:54:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 17:54:06,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:54:06,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288888214] [2021-06-12 17:54:06,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288888214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 17:54:06,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 17:54:06,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 17:54:06,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020570574] [2021-06-12 17:54:06,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-12 17:54:06,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:54:06,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-12 17:54:06,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-12 17:54:06,705 INFO L87 Difference]: Start difference. First operand 66057 states and 259823 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:07,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:54:07,140 INFO L93 Difference]: Finished difference Result 54383 states and 199540 transitions. [2021-06-12 17:54:07,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-12 17:54:07,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 17:54:07,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:54:07,537 INFO L225 Difference]: With dead ends: 54383 [2021-06-12 17:54:07,537 INFO L226 Difference]: Without dead ends: 54383 [2021-06-12 17:54:07,537 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-12 17:54:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54383 states. [2021-06-12 17:54:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54383 to 47979. [2021-06-12 17:54:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47979 states, 47963 states have (on average 3.7277276233763526) internal successors, (178793), 47978 states have internal predecessors, (178793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47979 states to 47979 states and 178793 transitions. [2021-06-12 17:54:09,245 INFO L78 Accepts]: Start accepts. Automaton has 47979 states and 178793 transitions. Word has length 36 [2021-06-12 17:54:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:54:09,251 INFO L482 AbstractCegarLoop]: Abstraction has 47979 states and 178793 transitions. [2021-06-12 17:54:09,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 47979 states and 178793 transitions. [2021-06-12 17:54:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-12 17:54:09,269 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:54:09,270 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:54:09,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 17:54:09,270 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:54:09,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:54:09,270 INFO L82 PathProgramCache]: Analyzing trace with hash -812869803, now seen corresponding path program 1 times [2021-06-12 17:54:09,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:54:09,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363473043] [2021-06-12 17:54:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:54:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:54:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-12 17:54:09,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 17:54:09,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363473043] [2021-06-12 17:54:09,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363473043] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-12 17:54:09,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25129364] [2021-06-12 17:54:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-12 17:54:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 17:54:09,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-12 17:54:09,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-12 17:54:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-12 17:54:09,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25129364] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-12 17:54:09,766 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-12 17:54:09,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-06-12 17:54:09,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962923542] [2021-06-12 17:54:09,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-12 17:54:09,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 17:54:09,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-12 17:54:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-06-12 17:54:09,769 INFO L87 Difference]: Start difference. First operand 47979 states and 178793 transitions. Second operand has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 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) [2021-06-12 17:54:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 17:54:10,432 INFO L93 Difference]: Finished difference Result 54356 states and 199492 transitions. [2021-06-12 17:54:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 17:54:10,433 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 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) Word has length 65 [2021-06-12 17:54:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 17:54:10,741 INFO L225 Difference]: With dead ends: 54356 [2021-06-12 17:54:10,742 INFO L226 Difference]: Without dead ends: 54356 [2021-06-12 17:54:10,742 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 318.0ms TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2021-06-12 17:54:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54356 states. [2021-06-12 17:54:12,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54356 to 47967. [2021-06-12 17:54:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47967 states, 47951 states have (on average 3.7280765781735523) internal successors, (178765), 47966 states have internal predecessors, (178765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 17:54:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47967 states to 47967 states and 178765 transitions. [2021-06-12 17:54:12,488 INFO L78 Accepts]: Start accepts. Automaton has 47967 states and 178765 transitions. Word has length 65 [2021-06-12 17:54:12,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 17:54:12,489 INFO L482 AbstractCegarLoop]: Abstraction has 47967 states and 178765 transitions. [2021-06-12 17:54:12,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 6.615384615384615) internal successors, (86), 13 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) [2021-06-12 17:54:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 47967 states and 178765 transitions. [2021-06-12 17:54:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-12 17:54:12,508 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 17:54:12,509 INFO L472 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 17:54:12,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-12 17:54:12,722 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 17:54:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 17:54:12,722 INFO L82 PathProgramCache]: Analyzing trace with hash -556403091, now seen corresponding path program 1 times [2021-06-12 17:54:12,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 17:54:12,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959476729] [2021-06-12 17:54:12,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 17:54:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:54:12,741 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:54:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-12 17:54:12,762 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-12 17:54:12,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-12 17:54:12,784 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-12 17:54:12,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 17:54:12,784 WARN L243 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-12 17:54:12,784 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-06-12 17:54:12,799 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,799 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,800 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,801 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,802 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,803 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,804 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,805 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,805 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,805 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,806 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,806 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,806 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,806 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,806 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,807 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,807 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,807 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,808 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,808 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,809 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,809 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,810 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,811 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,811 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,811 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,811 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,811 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,813 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,813 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,813 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,813 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,813 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,814 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,814 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,814 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,814 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,814 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-12 17:54:12,820 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-12 17:54:12,820 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-12 17:54:12,821 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 17:54:12,821 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 17:54:12,821 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 17:54:12,821 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 17:54:12,821 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 17:54:12,821 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 17:54:12,821 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 17:54:12,821 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 17:54:12,824 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 107 places, 107 transitions, 274 flow [2021-06-12 18:02:30,920 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:02:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:02:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-12 18:02:31,723 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 18:02:31,723 INFO L472 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-12 18:02:31,723 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-12 18:02:31,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 18:02:31,724 INFO L82 PathProgramCache]: Analyzing trace with hash -889549743, now seen corresponding path program 1 times [2021-06-12 18:02:31,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 18:02:31,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044309616] [2021-06-12 18:02:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 18:02:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 18:02:31,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 18:02:31,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 18:02:31,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044309616] [2021-06-12 18:02:31,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044309616] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 18:02:31,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 18:02:31,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-12 18:02:31,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675990739] [2021-06-12 18:02:31,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-12 18:02:31,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 18:02:31,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-12 18:02:31,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 18:02:32,411 INFO L87 Difference]: Start difference. First operand has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-12 18:02:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 18:02:38,799 INFO L93 Difference]: Finished difference Result 549930 states and 2557565 transitions. [2021-06-12 18:02:38,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-12 18:02:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-06-12 18:02:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 18:02:45,479 INFO L225 Difference]: With dead ends: 549930 [2021-06-12 18:02:45,479 INFO L226 Difference]: Without dead ends: 449085 [2021-06-12 18:02:45,479 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-12 18:02:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449085 states.